the.com/ape

the one primate honest enough to admit it threw the poop on purpose.

means A tailless primate of the great-ape family (or, as a verb, to mimic or imitate someone, often clumsily).

from From Old English 'apa,' a word shared across the Germanic tongues — Old Norse 'api,' Old High German 'affo' — for monkey or ape. Its deeper roots are murky; one suggestion is that it imitates an animal's chatter, but that's speculation. The 'imitate' sense came later and naturally enough: apes were the proverbial copycats, so to 'ape' someone meant to mock them by mimicry.

shared dna: Shares roughly 98 percent of its genome with humans.
tool user: Crafts spears and fishing sticks without instruction.
no tail: Apes lack tails; monkeys keep theirs.
grief shown: Mothers carry dead infants for weeks mourning.
sign language: Some learned hundreds of human hand signs.

for instance

koko the gorilla — learned over 1,000 signs in american sign language, 1971-2018

washoe the chimp — first non-human to learn sign language, allen and beatrix gardner, 1966

mountain gorillas of virunga — only ~880 individuals remaining in volcanic mountains of rwanda, uganda, drc