
Mammal
Pangolin
The world's only scaly mammal
Trusted wildlife guides · Promotional links support animal rescue
Tuesday, 28 July 2026Conservation
The IUCN Red List ranks species by how close they are to extinction, from Least Concern to Critically Endangered. Of the animals in this guide, 130 are considered threatened. Learning about them is the first step; funding their protection is the next.
130 animals in this guide are Vulnerable, Endangered, or Critically Endangered on the IUCN Red List. Each profile explains the threats and links to ways you can help fund protection through World Animal Rescue Network.
World Animal Rescue Network funds their protection on the ground — support their work .
Whether you want to give, sponsor, adopt or simply travel responsibly, these guides explain how it works so your support reaches the animals.
Practical ways to make a difference, from everyday choices to supporting the right organisations.
A plain-English checklist for vetting any animal cause before you give.
One-off gifts, monthly giving, sponsorship and legacies — and how each helps.
What symbolic adoption is, how it works, and what your gift actually funds.
How species sponsorship supports habitat protection and on-the-ground care.
From rescue and rehabilitation to release or lifelong care — and what they eat.
How to see wildlife without funding cruelty, and how to spot a genuine sanctuary.
Ranked from the most threatened. Each guide explains the dangers each species faces and ends with a way to help.

Mammal
The world's only scaly mammal

Mammal
The largest living primate

Reptile
The tortoiseshell turtle

Mammal
Africa's hook-lipped browser in crisis

Bird
North America's largest flying land bird

Bird
Flightless nocturnal parrot of New Zealand

Fish
Living-fossil lobe-finned fish

Mammal
The smallest, hairiest — and rarest — rhino

Mammal
The rarest rhino on Earth

Amphibian
The salamander that never grows up and can regrow body parts

Mammal
Bulbous-nosed steppe antelope of Central Asia

Amphibian
World's largest amphibian

Fish
Giant ray with a toothed rostral saw

Fish
The shark with a head like a hammer

Amphibian
Critically Endangered orange gem of Madagascar

Fish
Critically Endangered lord of the open ocean

Fish
Critically Endangered shovel ray of sandy coasts

Invertebrate
Critically Endangered nacre snail of Pacific kelp

Mammal
The great ape of the Southeast Asian rainforest

Fish
The 100-year reproductive mystery that baffled scientists from Aristotle to the 21st century

Reptile
The fish-eating crocodilian with a long, narrow snout

Mammal
The world's most endangered marine mammal

Mammal
The largest cat species on Earth

Mammal
The largest land animal alive today

Mammal
The smaller cousin of Africa's giant

Mammal
The gentle giant of Rwanda's volcanoes

Mammal
The small forest hippo of West Africa

Mammal
The largest animal that has ever lived

Mammal
Madagascar's nocturnal oddity

Mammal
Australia's feisty marsupial scavenger

Mammal
The fiery-furred resident of the Himalayas

Mammal
The forest giraffe of the Congo

Mammal
The long-limbed acrobat of Central American forests

Mammal
The black-and-white gardener of Asian rainforests

Mammal
The last truly wild horse

Mammal
The singing ape of the canopy

Mammal
The peaceful ape of the Congo Basin

Mammal
The golden-striped kangaroo that lives in trees

Mammal
Our closest living relative

Mammal
Borneo's big-nosed swimmer

Mammal
Africa's cooperative pack hunter

Mammal
The black-and-white forest gardener

Fish
Second-largest fish; gentle plankton feeder

Bird
Tallest North American bird and conservation icon

Bird
Long-legged raptor that stamps snakes

Mammal
The tool-using keystone of the kelp forest

Mammal
The soft-furred rodent of the Andes

Bird
Alpine parrot renowned for curiosity

Mammal
The wallowing bovine of Asia

Bird
Flightless purple swamphen of New Zealand

Mammal
Madagascar's striped-tailed, sun-bathing primate

Mammal
Diurnal termite-eating marsupial

Reptile
The largest lizard on Earth

Reptile
The gentle, long-lived grazer of tropical seas

Fish
The largest fish in the world

Fish
The fastest shark in the ocean

Bird
One of the most intelligent talking birds

Mammal
Endangered fruit bat of island canopies

Mammal
Dancing lemur of Madagascar's spiny forest

Mammal
Spotted Tasmanian survivor lost from the mainland

Fish
Queensland river survivor from the age of dinosaurs

Fish
Seagrass-munching hammerhead of warm shallows

Fish
The gentle giant that flies through the sea

Amphibian
The largest frog on Earth

Bird
Nature's clean-up crew on broad soaring wings

Mammal
The social big cat of the African savanna

Fish
The ocean's most famous apex predator

Mammal
The bamboo-eating bear of China's mountains

Mammal
The tallest animal on Earth

Bird
The widest wingspan on Earth

Reptile
The giant jellyfish specialist

Mammal
The stealthy, tree-climbing big cat

Mammal
The largest land carnivore, ruler of the Arctic

Mammal
The tree-climbing cat of Asian rainforests

Mammal
The deep-diving giant with the largest brain

Reptile
The prehistoric lure-fishing giant of American rivers

Mammal
The armour-plated one-horned giant

Fish
The heaviest bony fish

Mammal
The world's most colourful primate

Mammal
The Arctic migrator and both-sex antlered deer

Mammal
The fastest land animal on Earth

Fish
The whip-tailed hunter

Mammal
The tusked giant of the Arctic ice

Fish
Labyrinth fish famous for vivid fins

Mammal
South America's two-metre tongue specialist

Reptile
The powerful-jawed sea turtle

Mammal
The sleek greyhound of the seas

Bird
Clown-billed seabird of North Atlantic cliffs

Fish
The toothy aquarium shark

Mammal
Australia's wild dog of the outback

Mammal
The smallest bear of Southeast Asia's rainforests

Mammal
Australia's iconic eucalyptus-eating marsupial

Mammal
The gentle sea cow of warm coastal waters

Fish
The docile reef bottom-dweller

Mammal
India's shaggy insect-eating bear

Bird
The thunderbird of Borneo's rainforest

Bird
Giant New World vulture of the Andes

Bird
Largest flying parrot, cobalt blue

Mammal
The only bear native to South America

Mammal
The elusive ghost of the mountains

Bird
Giant swamp bird with a shoe-shaped bill

Reptile
Eyelash-crested gecko of New Caledonia

Mammal
Africa's deadliest large land mammal

Mammal
The gentle sea cow of the Indo-Pacific

Mammal
Cat-like apex predator of Madagascar

Reptile
North America's hinged turtle

Fish
The fish that built Atlantic nations

Mammal
Long-eared desert bandicoot

Reptile
The world's longest venomous snake

Insect
The insect that migrates thousands of miles

Fish
The tiny fish where fathers give birth

Amphibian
Blind cave salamander of European karst

Bird
New Zealand's flightless nocturnal bird with nostrils at the tip of its bill

Fish
The colorful fighter of Southeast Asian waters

Reptile
The giant tortoise that can live over a century

Invertebrate
The world's largest land arthropod and tree-climbing island giant

Mammal
The smiling marsupial of Western Australia

Fish
Yellow coastal shark of mangrove nurseries

Fish
Warm-blooded hunter of cold Atlantic seas

Fish
Mediterranean voltage trap of the sandy seabed

Invertebrate
Vulnerable coiled survivor of deep reefs

Bird
The white owl of the Arctic tundra

Fish
The shark that swims into freshwater

Invertebrate
The ancient living fossil with blue blood

Bird
The colorful 'sea parrot' of the North Atlantic

Mammal
The shaggy ox of the high Himalayas

Invertebrate
The reef-dwelling giant of the mollusks

Amphibian
North America's giant, fully aquatic salamander

Mammal
The crimson-faced monkey of the flooded Amazon

Mammal
The wild sheep of the Central Asian hills