Animals in California
Wildlife in California
California is the most populous state in the country, with about 39 million people, and the third largest by area. Most people live along the coast, from San Diego and Los Angeles to the San Francisco Bay Area, which leaves huge areas of mountains, forest and desert almost empty. The state holds both extremes of the contiguous United States: Mount Whitney, at 4,421 meters, is the highest peak, and Badwater Basin in Death Valley, 86 meters below sea level, is the lowest point in North America, and the two lie less than 140 kilometers apart. Much of the coast has a Mediterranean climate, with mild, rainy winters and long dry summers, while the Sierra Nevada gets deep snow and the Mojave and Colorado deserts bake in summer heat. In between are foggy redwood forests on the north coast, golden oak hills, the farmland of the Central Valley, volcanic peaks in the north and more than 1,300 kilometers of rocky shoreline and sandy beaches.
The land shaped the way Californians live. The Gold Rush that began in 1848 brought people from all over the world, and the Central Valley grew into one of the richest farming regions on Earth, producing much of the country's fruits, nuts and vegetables. California also helped invent the idea of protecting nature: in 1864 President Lincoln signed the Yosemite Grant, the first time the federal government set aside land for public enjoyment, and today Yosemite and Redwood are UNESCO World Heritage Sites.
Tourism reaches every corner of the state. Visitors drive the Big Sur coast, cross the Golden Gate Bridge, walk among the giant trees of Yosemite and Sequoia, tour the wine country of Napa and Sonoma and take boats into Monterey Bay, where migrating whales pass in winter and spring. Wildlife follows these contrasts: whales, seals and sea lions on the coast, bears and wild cats in the mountains, and birds of prey soaring over the deserts and valleys.
Most Dangerous Animals in California
Wild animals in California injure very few people, but a few deserve respect. Venomous snakes are the most common risk. All of the state's dangerous snakes are rattlesnakes, and most bites happen when someone steps near one, reaches into rocks or tries to handle it. Stay on trails, watch where you put your hands and feet in spring and summer, and give any snake plenty of room. Bites are treated with antivenom and are rarely fatal when people get to a hospital quickly.
Wild cats live close to many towns, yet verified attacks on people are very rare. In 2024 a man was killed in El Dorado County, the first fatal attack in the state in 20 years. When hiking in their territory, keep children close, never run if you meet one, and make yourself look big. Bears are much more of a nuisance than a threat: they break into cars, cabins and coolers in search of food, so use the bear lockers in parks and never leave snacks in a vehicle.
At sea, large sharks are behind the few bites recorded in California, which are rare for the number of surfers and swimmers in the water. Avoid areas with many seals and sea lions, which attract them. On Catalina Island, a herd of bison roams free and can charge if people get too close, and wild pigs can turn aggressive when cornered. As a general rule, keeping your distance and never feeding wild animals prevents almost every problem.
Top 10 Animals in California
California's best known animals live on land and at sea, and the coast is the easiest place to start. The blue whale, the largest animal that has ever lived, feeds off the state in summer and fall, with good chances on boat trips from Monterey Bay, the Santa Barbara Channel and San Diego. Orca is seen most often in Monterey Bay, where groups of them hunt marine mammals close to shore. The great white shark gathers each fall around the Farallon Islands, west of San Francisco, to hunt young elephant seals, although these waters are best watched from a boat or a cliff.
On land, the cougar is present in most of the state but very shy, and it is far more common to see its tracks on a dusty trail than the cat itself. The American black bear is easy to find in Yosemite and around Lake Tahoe, where bears often visit campgrounds. The bald eagle has returned to the Channel Islands after a reintroduction that began in 2002, and a nesting pair at Big Bear Lake is followed by thousands of people on a live camera. On Catalina Island, the American bison herd brought over for a film shoot in the 1920s still roams the hills. Coyote and bobcat are common in parks across the state, and beaver is slowly coming back to rivers in the north and center.
Red Fox
Vulpes vulpes
California has native and introduced red foxes. The Sierra Nevada red fox lives above the tree line in the high Sierra and was listed as endangered in 2021, with only about 18 to 39 left. Lowland red foxes in the Central Valley and along the coast descend largely from foxes released or escaped from fur farms, and they prey on endangered ground nesting shorebirds and marsh birds. IUCN status: Least Concern.
Wild Boar
Sus scrofa
Feral pigs in California descend from Spanish mission pigs and from wild boars released in Monterey County in 1924. Today they live in oak woodlands, chaparral and grasslands across most of the state, especially the Coast Ranges and Sierra Nevada foothills. They are a popular game animal, but their rooting damages farms, vineyards and native plants. Cougars and coyotes prey on them. IUCN status: Least Concern.
American Bison
Bison bison
California's bison live on Santa Catalina Island, off Los Angeles. Fourteen were brought to the island in 1924, reportedly for a film, and their descendants have roamed its hills ever since. The Catalina Island Conservancy now keeps the herd at around 100 to 150 animals to protect the island's native plants, and visitors often see them on the island's roads and trails. IUCN status: Near Threatened.
Beaver
Castor canadensis
Beavers inhabit river valleys and riparian corridors across parts of California, including the Central Valley and several northern watersheds. Their presence is increasingly welcomed by conservationists working on water retention and habitat restoration in a state prone to drought. Research in California has shown that beaver activity raises local water tables and supports populations of steelhead trout and other native species that depend on cool, slow water.
Cougar
Puma concolor
California has one of the most studied mountain lion populations in the world, with individuals tracked across the Coast Ranges, the Sierra Nevada and even the hills of Los Angeles, where one collared male lived alone in Griffith Park for a decade. The state has banned sport hunting of cougars since 1990, which has kept numbers relatively stable. Habitat fragmentation from roads and urban sprawl is now the most serious long term challenge.
Coyote
Canis latrans
In California, coyotes live almost everywhere, from the Mojave Desert and the Central Valley to the coastal chaparral and the city neighborhoods of Los Angeles and San Francisco, where they returned to the Presidio in the early 2000s. They are one of the few native predators that grew more common as the state urbanized, and residents often see them trotting through suburbs at dawn. They eat gophers, rats, rabbits and fruit. IUCN status: Least Concern.
Bobcat
Lynx rufus
Bobcats live throughout California, from coastal chaparral and oak woodland to the Sierra Nevada and the Mojave Desert. A long study by the National Park Service in the Santa Monica Mountains near Los Angeles linked rat poison to deadly mange in local bobcats. California banned commercial and recreational bobcat trapping in 2015 and stopped sport hunting of bobcats in 2020. IUCN status: Least Concern.
American Black Bear
Ursus americanus
Since the California grizzly died out in the 1920s, the black bear is the only bear left in California, living in the Sierra Nevada, the Cascades and the coastal and southern mountains. In Yosemite, Sequoia and around Lake Tahoe, bears have learned to break into cars, cabins and homes for food, and the state requires bear proof food storage in many areas. IUCN status: Least Concern.
Raccoon
Procyon lotor
Raccoons are widespread in California, in coastal woodlands, river valleys, mountain foothills and big cities such as the San Francisco Bay Area and Los Angeles, where they den in storm drains and under houses. In natural areas they stay close to streams and wetlands. Feeding raccoons is discouraged, because it draws them to homes and helps spread diseases such as the raccoon roundworm. IUCN status: Least Concern.
Pronghorn
Antilocapra americana
California once had perhaps half a million pronghorns, but market hunting during the Gold Rush nearly wiped them out. Today about 4,500 live in the northeast of the state, on the Modoc Plateau in Modoc, Lassen, Siskiyou and Shasta counties. A small reintroduced herd of about 100 survives on the Carrizo Plain, and the Antelope Valley in the Mojave Desert still carries their name, though they no longer live there. IUCN status: Least Concern.
Opossum
Didelphis spp. (6 species)
The Virginia opossum is not native to California. It was brought to the state around 1910, probably as food or as pets, and has since spread through most of the lowlands, from the Central Valley and the Bay Area to Los Angeles and the foothills of the Sierra Nevada. It does well in gardens, parks and river woods, and it is now one of the most common wild mammals in California suburbs. IUCN status: Least Concern.
River Otter
Lontra canadensis
In California, river otters live in the rivers and lakes of the north, the Sierra Nevada and the Sacramento San Joaquin Delta. After decades of absence they are returning to the San Francisco Bay Area, where the River Otter Ecology Project tracks them in Marin County, at Rodeo Lagoon and even at the Sutro Baths. Along the north coast they are often mistaken for sea otters, which live farther south. IUCN status: Least Concern.
Gray Fox
Urocyon cinereoargenteus
The gray fox is common across much of California, in oak woodlands, chaparral, foothills and canyons from the coast ranges to the Sierra Nevada foothills. California gray foxes belong to the western lineage of the species, which split from eastern foxes about a million years ago. They often live near towns where wild land meets houses, and they climb trees to rest or escape. IUCN status: Least Concern.
Sea Turtle
Chelonia mydas
California has one of the northernmost green turtle populations in the eastern Pacific: a resident group of about 60 to 100 turtles that live year round in San Diego Bay, studied by scientists since the 1970s and mostly found in the shallow South Bay. Green turtles are also seen in the San Gabriel River near Long Beach. They are thought to come from nesting beaches in Mexico, and do not nest in California. IUCN status: Least Concern.
Rattlesnake
Crotalus and Sistrurus (about 40–50 species)
California has several rattlesnakes. The western rattlesnake is the most widespread, in grasslands, chaparral, woodlands and mountains, while the Mojave, sidewinder, speckled, red diamond and western diamondback live in the south and the deserts. Rattlesnake season usually runs from spring to fall. Bites are treated with antivenom in hospitals across the state. Wildfires and urban sprawl are growing concerns. IUCN status: varies by species.
Coquí
Eleutherodactylus coqui
The coqui has a very tenuous foothold in California. It turns up in plant nurseries and a few residential sites in Los Angeles, Orange and San Diego counties, always arriving with shipments of ornamental plants from Hawaii or Puerto Rico. These pockets stay small and local: California winters and dry spells are hard on a frog that needs constant humidity. The state keeps it on its restricted animal list, and nursery inspections are the main line of defense.
Barn Owl
Tyto alba
The barn owl is one of the most widespread birds of prey in California, found across the entire state from the Central Valley and the coastal ranges to the inland deserts and the foothill zones of the Sierra Nevada. It nests in old farm buildings, hollow trees, cliff faces, and nest boxes, and hunts rodents at night year round. California's mild climate and diverse agricultural landscape, including vineyards, orchards, and grain fields, support large and generally stable populations. Nest box programs promoted by wineries and farms across the Central Valley and wine country have made the barn owl a flagship species for natural pest management in California agriculture.
Peregrine Falcon
Falco peregrinus
California has a strong and growing breeding population of peregrine falcons after the species nearly vanished from the state due to DDT contamination. Coastal cliffs from the Bay Area to San Diego, as well as bridges and tall buildings in cities like San Francisco, now host nesting pairs. The California population is closely monitored by wildlife agencies and volunteer networks. Recovery here has been one of the most closely watched raptor conservation achievements in the western United States.
Bald Eagle
Haliaeetus leucocephalus
California has both resident and wintering bald eagles, with most nests in the north, around Shasta Lake, Lake Almanor and other large reservoirs. The Klamath Basin near the Oregon border draws some of the largest winter gatherings in the lower 48. After DDT wiped them out on the Channel Islands, eagles were reintroduced there, and Big Bear Lake has become famous for its nesting pair. IUCN status: Least Concern.
Golden Eagle
Aquila chrysaetos
In California, the golden eagle is a year round resident of the Coast Ranges, the Sierra Nevada foothills, the deserts and open grassland and oak woodland. One of the most studied golden eagle populations in the world lives around the Diablo Range. The Altamont Pass wind farms nearby became known for killing many eagles, which led to safer turbine designs. Pairs keep the same territory for years and often have several nests. IUCN status: Least Concern.
Blue Whale
Balaenoptera musculus
California offers the most dependable blue whale watching in the northern hemisphere. From about June to October the whales feed in Monterey Bay, the Santa Barbara Channel and around the Channel Islands, close enough for half day boat trips. It is the best studied blue whale population on the planet, and also one of the most exposed to ship strikes, because its feeding areas overlap with the shipping lanes of Los Angeles and San Francisco. IUCN status: Endangered.
Humpback Whale
Megaptera novaeangliae
California is one of the best places to see humpbacks feeding. They are found for much of the year, with the most from about April to December, and Monterey Bay is famous for whales lunging through schools of anchovies close to shore. Most belong to populations that breed off Mexico and Central America. Entanglement in crab fishing lines is the main threat here, and the fishery now closes early when whales arrive. IUCN status: Least Concern.
Orca
Orcinus orca
California has orcas all year. Bigg's orcas, which eat marine mammals, patrol the coast and are seen most often in Monterey Bay, especially in April and May, when they ambush gray whale calves migrating north with their mothers. Fish eating Southern Residents sometimes come down from Washington in winter, and offshore orcas, which eat sharks, travel in large groups far from shore. Boat tours from Monterey and Moss Landing see them regularly. IUCN status: Data Deficient.
Bottlenose Dolphin
Tursiops truncatus
California has two groups of bottlenose dolphins: a coastal one of a few hundred animals that swims just beyond the surf, often visible from piers and beaches from San Diego to Santa Monica, and a larger offshore one. After the El Niño of 1982 and 1983 the coastal dolphins spread north, and they are now seen as far as Monterey Bay and San Francisco. They often surf the waves next to people. IUCN status: Least Concern.
Harbor Seal
Phoca vitulina
California has around 30,000 harbor seals, resting on beaches, rocks and sandbars along the whole coast. Point Reyes has some of the largest pupping sites in the state, and Monterey Bay and Año Nuevo are good places to see them. In La Jolla, the Children's Pool is closed every year from December 15 to May 15 so that mothers can give birth on the sand. They are quieter than sea lions and do not bark. IUCN status: Least Concern.
Common Dolphin
Delphinus delphis
California is one of the best places in the world to see common dolphins. Both the short beaked and the long beaked forms live off the coast, and groups of hundreds, sometimes thousands, are seen year round on boat trips from San Diego, Dana Point, Newport Beach and Monterey Bay. Dana Point calls itself the dolphin and whale watching capital of the world. They feed on anchovies, sardines and squid. IUCN status: Least Concern.
Elephant Seal
Mirounga spp.
California is the easiest place in the world to see elephant seals. The Piedras Blancas rookery near San Simeon, where the first pup was born in 1992, now holds about 25,000 seals, and its vista point on Highway 1 is free and open all year. At Año Nuevo the beaches are visited on guided walks from December 15 to March 31, and Point Reyes has its own Elephant Seal Overlook. IUCN status: Least Concern.
Sea Lion
Otariinae (six living species)
California sea lions are everywhere on the California coast. The best known spots are Pier 39 in San Francisco, where they took over the K Dock in 1989 and topped 2,100 animals in 2024, La Jolla Cove in San Diego, inside a marine reserve, and the wharves of Monterey. Most pups are born in summer on the Channel Islands, especially San Miguel and San Nicolas. The population has grown to about 257,000 since 1972. IUCN status: Least Concern.
Great White Shark
Carcharodon carcharias
California has one of the best studied great white populations in the world. Adults gather each fall at the Farallon Islands, off San Francisco, and at Año Nuevo, to hunt elephant seals and sea lions, and some then spend months in the open Pacific, in an area nicknamed the white shark café. Young great whites grow up along the beaches of southern California, where their numbers have increased. California protected the species in 1994. IUCN status: Vulnerable.
Frequently Asked Questions
What animals live in California?
California is home to the cougar, American black bear, coyote, bobcat, gray fox, pronghorn, beaver and rattlesnake on land, and to bald eagle and golden eagle in the sky. Its coast is one of the best places in the world to see marine mammals, including blue whale, humpback whale, orca, sea lion, harbor seal and elephant seal, as well as the great white shark.
Are there bears in California?
Yes. The only bear in the state is the American black bear, and it is doing well: the state wildlife agency estimates around 60,000 of them, living mainly in the Sierra Nevada, the north coast and the mountains of Southern California. Many are brown or cinnamon in color despite the name.
How many cougars are in California?
A statewide study using GPS collars, cameras and DNA from droppings estimated between 3,200 and 4,500 cougars, fewer than the older figure of about 6,000 that was often repeated. The densest populations are in the forests of the northwest coast. Cougars are a specially protected animal in California, and hunting them has been banned since 1990.
Where can you see whales in California?
Monterey Bay is the most famous spot, with humpback whale and blue whale from late spring to fall and orca at different times of year. The Santa Barbara Channel and the waters off San Diego are also good for blue whales in summer. Boat tours leave from many harbors, and headlands such as Point Reyes and Point Vicente give good views from land.
Are there bison in California?
Only on Catalina Island, off the coast of Los Angeles. In 1924 a small group of American bison was brought to the island for a film shoot and left behind. The herd once grew to several hundred, but it is now kept small, at around 100 animals or fewer, to protect the island's native plants. Visitors can see them on guided tours.
Researched and written by Juan Pablo. Sources: IUCN Red List, scientific literature and regional field guides. Last updated: .




























