There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19