Giant Sloth

From Wikipedia

Megatherium ("Great Beast") was a genus of elephant-sized ground sloths that lived from two million to 8,000 years ago. A related genus was Nothrotheriops, which were primarily bear-sized ground sloths.

Unlike its living relatives, the tree sloths, Megatherium was one of the largest mammals to walk the Earth, weighing five tons, about as much as an African bull elephant. Although primarily a quadruped, its footprints show that it was capable of assuming a bipedal stance. When it stood on its hind legs, it was about twice the height of an elephant, or about twenty feet tall.

Megatherium had a robust skeleton with a large pelvic girdle and a broad muscular tail. Its large size enabled it to feed at heights unreachable by other contemporary herbivores. Rising on its powerful hind legs and using its tail to form a tripod, Megatherium could support its massive body weight while using the curved claws on its long forelegs to pull down branches with the choicest leaves. Its jaw is believed to have housed a long tongue, which it would then use to pull leaves into its mouth, similar to the modern tree sloth.

Lion

From Wikipedia:

Lion's Share is an expression that has come to mean the larger of two amounts, or more often, the largest of several amounts.

The saying derives from one of Aesop's fables, where the term is actually defined as the complete amount (all of it).

In the fable, a lion, fox, jackal and wolf go hunting, successfully killing a deer. It is divided into four parts with the lion taking the first quarter because he is king of the beasts, the second quarter because he is the arbiter of which animals get what portions of the deer, the third quarter because of his help in catching the deer, and the fourth quarter for his superior strength.

In some variants of the fable, the lion only takes three-quarters of the deer and lets the other animals fight over the remaining quarter.

sea cow

From Wikipedia:

Sea cows appear in Rudyard Kipling's short story "The White Seal", where they show the title character a place of refuge from human hunters. Kipling probably knew (a) that the sea cow was considered extinct and that (b) nevertheless people sometimes claimed to have seen them. Thus, his suggestion is that they are around, but mostly hiding.