A History of Short Words

From the New York Times Crossword Puzzle

KOALA

Sat, 14 Oct '23
Animal with fused toes on each hind paw, used for grooming its coat
Mon, 21 Aug '23
"Bear" in a eucalyptus forest
Sun, 16 Jul '23
Certain tree-hugger
Tue, 24 Jan '23
Eucalyptus-eating "bear"
Wed, 11 May '22
___ bear