Land Mammals
This is the largest species of Rodent.
This type of snake is known the play dead when a potential predator approaches them.
Hognose Snake
The male of this species carries the offspring during pregnancy as opposed to the female.
Seahorse
Australia lost a war to this species of bird.
Emu
This species is known for having the smallest arms out of any dinosaur.
Carnotaurus
This is the only animal other than primates to have finger prints.
Koala
The victims of this animal are stalked as they die over the course of a few days as its attackers venom prevents blood clotting and the wound is ravaged by the bacteria from the creature's mouth.
Komodo Dragon
This sea creature will attack and handle pufferfish in an attempt to get high from its toxins.
Dolphin
This is the only bird that is known to fly backwards.
Hummingbird
In 2022 a controversial study claimed that this species was actually separated into 3 different species.
Tyrannosaurus (T-rex, T-imperator, and T-regina)
Despite initial belief, this animal is more closely related to greater kudu than lowland nyala.
Mountain Nyala
This animal is capable of shooting blood from its eyes as a defense mechanism.
Horned Lizard
This sea creature is capable of producing a shockwave that immediately kills its prey via a single punch.
Mantis Shrimp (Also Pistol Shrimp)
During both courtship and territorial disputes, this bird will lock talons with another bird and plumet from the sky in a move called the "death spiral."
Bald Eagle
This dinosaur had its unique tail structure named the thagomizer by cartoonist Gary Larson.
Stegosaurus
This species is one of the few mammals that fulfill a pollinator role in their ecosystem, making them the world's largest pollinators.
Giraffe (primarily for Acacia flowers)
Johnathan, the oldest known tortoise, is a member of this species of tortoise.
Seychelles Giant Tortoise
This sea creature is incapable of experiencing tooth decay due to natural layers of fluoride.
Sharks
This bird was proposed as an important component in the British Army's "Blue Peacock" project.
Chicken (body heat kept nuclear mine warm during the winter)
This animal went extinct 1000 years after the pyramids were built.
Woolly Mammoth
The global biomass of this species is eight times the combined biomass of all other terrestrial vertebrates combined.
Mankind
These reptiles are more closely related to birds than lizards.
Aligators/Crocodiles (In the Archosaur category that also contained dinosaurs, later evolved into birds).
This is the loudest animal on earth capable of producing sounds up to 230 decibels.
Sperm Whale
These two Penguin species are found exclusively in the Antarctic.
Emperor and Adelie
The velociraptor in Jurassic Park is actually based on this dinosaur.
Deinonychus