Land
What largest bear species, and largest land carnivore, is difficult to see on infrared cameras, due to blubber and fur blocking their heat?
Polar Bear
What creature has no teeth or stomach, mates for life, and is the only species on Earth where the male carries the unborn offspring?
Sea Horse
Queen Alexandra's birdwing of Papua New Guinea is, somewhat surprisingly, not a bird. Instead, this creature is the world's largest variety of what colorful winged animal?
Butterfly
With exclamations that can travel as far as 5km, one of the loudest land animal?
Howler Monkey
What is the common name for the group of flatfish species well-known for their camouflage abilities and for the peculiar positioning of both eyes on one side of the body? Interestingly, at hatching, one eye is on either side of the body but an eye moves over to join the other before reaching adulthood.
Flounder
The last widely-accepted sighting of a certain bird species was in 1662 on the island nation of Mauritius. Due to the bird's remote home, the creature was considered mythological for a period of time. What is this bird?
Dodo
Australia built a 3,000-mile-long fence during the 1880s just to block the movement of what baby-snatching species?
Dingo
What is the more common name of the world's most simple animals, the phylum Porifera?
Sponges
Drosophila melanogaster is perhaps the world's most famous "model organisms" used in scientific research. What's the better known alliterative name of this "common" insect?
Fruit Fly
What treetop mammal can hold its breath underwater for a whopping 40 minutes, even longer than dolphins?
Sloth
Which fish has amazing properties of its heart, which is regenerative and can mend itself quickly?
Zebrafish
Name the species of bird that has a tongue so long it wraps around the back of their skull when not in use, protecting their brains?
Woodpecker