Home
Animals
Mammals

Mammals

Sort By:

Warm-blooded animals with fur or hair that feed milk to their babies, including humans, dogs, whales, and elephants.

Average Life Span 12–18 years (Indoor cats often live to 20+)

Fact Domestic cats have a specialized skeletal structure—they have no collarbone. This unique anatomy allows them to squeeze their bodies through any opening as wide as their head.

Weight KG 3.6–5.4 kg (Average range)

Continent Asia

Domestic Dog

Scientific Name Canis lupus familiaris

Weight LB 5 lb to 150+ lb (Highly variable by breed)

Average Life Span 10–13 years (Small breeds live longer than large breeds)

Fact A dog’s sense of smell is 10,000 to 100,000 times more acute than a human's. While we might notice a teaspoon of sugar in our coffee, a dog could detect that same teaspoon of sugar in a million gallons of water (two Olympic-sized swimming pools!).

Weight KG 2 kg to 70+ kg (Highly variable by breed)

Continent Asia

Eastern Gray Squirrel

Scientific Name Sciurus carolinensis

Weight LB 0.8–1.3 lb

Average Life Span 12.5-20 years

Fact Eastern gray squirrels are like nature's little gardeners because they bury thousands of nuts and seeds and often forget where they put them, helping new trees grow, and they can even run down trees headfirst by rotating their hind paws backward to grip the bark. They also communicate with various calls and tail flicks to warn others of danger and have incisors that grow continuously, needing to gnaw to keep them filed down.

Weight KG 400-600 g

Country United States

Continent North America

Habitat Woodlands

Diet Omnivore

Conservation Status Least Concern

Region North America

Giant Panda

Scientific Name Ailuropoda melanoleuca

Weight LB 150–280 lb

Average Life Span 15–20 years (Wild); up to 30 years (Captivity)

Fact The Giant Panda possesses a "pseudo-thumb" that isn't actually a finger. It is an elongated wrist bone (the radial sesamoid) covered by a fleshy pad. This evolutionary adaptation works like a thumb, allowing the panda to grip and manipulate bamboo stalks with incredible precision.

Scientific Name Giraffa camelopardalis

Weight LB 1,800–4,200 lbs

Average Life Span 10–15 years (Wild) / 20–27 years (Captivity)

Fact Giraffes only need 5 to 30 minutes of sleep in a 24-hour period, often taken in quick naps that last just a minute or two!

Weight KG 800–1,900 kg

Continent Africa

Gorilla

Scientific Name Gorilla gorilla gorilla

Weight LB 150–200 lb (Female); 300–450 lb (Male)

Average Life Span 35–40 years (Wild); up to 50+ years (Captivity)

Fact Gorillas share about 98% of their DNA with humans, making them one of our closest living relatives. They are highly intelligent and can learn sign language; the famous gorilla Koko learned over 1,000 signs! In the wild, they live in groups led by a dominant male known as a "Silverback," named for the distinctive patch of silver hair that grows on his back when he reaches full maturity (around 12 years old).

Weight KG 68–90 kg (Female); 135–200 kg (Male)

Continent Africa

Gray Wolf

Scientific Name Canis lupus

Weight LB 60–145 lb

Average Life Span 6–8 years (Wild); up to 15 years (Captivity)

Fact Wolves are the ultimate marathon runners of the predator world. While a cheetah is built for a short sprint, a wolf can trot at a steady pace of about 5 mph (8 km/h) for almost an entire day. When chasing prey, they can reach speeds of 35–40 mph (56–64 km/h).

Weight KG 27–65 kg

Region Asia, Europe, North America

Grizzly Bear

Scientific Name Ursus arctos horribilis

Weight LB 200–700 lb (Females); 400–800+ lb (Males)

Average Life Span 20–25 years (Wild); up to 30+ years (Captivity)

Fact The most distinguishing physical feature of a Grizzly Bear is the prominent muscle hump on its shoulders. This isn't just for show; it is a massive mound of muscle that powers their front legs for digging up roots, tearing apart rotten logs for insects, and excavating dens. Despite their heavy build and the "lumbering" way they walk, Grizzlies are incredibly fast, capable of reaching speeds of up to 35 mph (56 km/h) in a sprint—faster than an Olympic sprinter!

Weight KG 90–315 kg (Females); 180–360+ kg (Males)

Continent North America

Hippopotamus

Scientific Name Hippopotamus amphibius

Weight LB 3,000–9,900 lbs

Average Life Span 40–50 years

Fact Despite their massive size, hippos can outrun a human on land, reaching speeds of up to 19 mph (30 km/h)!

Weight KG 1,300–4,500 kg

Continent Africa

Humpback Whale

Scientific Name Megaptera novaeangliae

Weight LB 55,000–66,000 lb

Average Life Span 45–50 years (though some may live up to 80–90)

Fact Humpbacks are famous for their extraordinarily long pectoral fins, which can reach up to 16 feet (5 meters) in length—about one-third of their total body length. The scientific name Megaptera actually means "big-winged."

Weight KG 25,000–30,000 kg

Region Africa, Arctic, Australia, Bermuda, Europe, North America, Oceania, South America

Jaguar

Scientific Name Panthera onca

Weight LB 100–250 lb (Large males can reach 300+ lb)

Average Life Span 12–15 years (Wild); up to 23 years (Captivity)

Fact The jaguar has the strongest bite force of all the big cats relative to its size. Their jaws are so powerful that their preferred hunting method is to bite directly through the skulls of their prey or pierce the thick shells of turtles and caimans.

Weight KG 45–113 kg (Large males up to 158 kg)

Country Brazil

Continent South America

Region South America

Kangaroo

Scientific Name Osphranter rufus

Weight LB 40–200 lb

Average Life Span 6–8 years (Wild); up to 20 years (Captivity)

Fact Kangaroos are the only large animals that use hopping as their primary means of travel. Their hind legs have large, stretchy tendons that act like giant springs; as they land, the tendons store energy, which then "snaps" back to launch them into the next hop. This system is so efficient that a kangaroo actually uses less energy the faster it hops!

Weight KG 18–90 kg

Country Australia

Continent Oceania

« Previous

1 2 3 4

Menu

Search the site →

Mammals