The axolotl is a Mexican salamander that can regenerate its limbs, spinal cord, heart, and other organs, making it a favorite of scientists who study regenerative medicine.
The platypus is a unique animal found only in Australia. It is a mammal that lays eggs and has a duck-like bill, beaver-like tail, and webbed feet.
The blobfish is a deep-sea fish that looks like a blob of jelly with eyes and a mouth. It has no swim bladder, so it floats above the ocean floor to conserve energy.
The aye-aye is a nocturnal primate found in Madagascar. It has long, bony fingers for tapping on trees to find grubs, and is considered a bad omen by some locals.
The narwhal is a medium-sized whale found in the Arctic. It has a long, spiral tusk that is actually a tooth, and is used for hunting and communication.
The star-nosed mole is a small, blind mammal found in the eastern United States and Canada. It has a unique star-shaped nose that it uses to find prey.
The okapi is a mammal found in the Congo rainforest. It looks like a cross between a giraffe and a zebra, with striped legs and a long, prehensile tongue.
The lamprey is a jawless fish found in freshwater and saltwater. It has a circular mouth full of teeth that it uses to attach to other fish and suck their blood.