Pufferfish
Slow Loris
Moose
Big Cats
Cassowary
Blue-Ringed Octopus
Bears
Poison Dart Frog
Giant Anteater
Wolverine
Pfeffer's Flamboyant Cuttlefish
Leopard Seal
Gila Monster
Elephant
Monkeys and Apes
mnn.com
To learn more about these adorable, but lethal animals, be sure to click on the link above!