Why was the guinea pig called that? Because it squeals a bit. And grunts. And was first sold as a cheap novelty in England for a guinea.
There aren’t any guinea pigs in the wild. South Americans domesticated them over 3,000 years ago.
Guinea pigs don’t sweat.
Longest lived guinea pig was 14 years old.
A hamster can put half its weight in food into its cheek pouches.
In 1930 somebody in Syria captured a pair of hamsters. All of the world’s caged hamsters descend from that pair, or so say the historical footnotes.
When you hear a woodpecker drumming on a drainpipe, he’s not trying to dig a hole in it. He’s sending out territorial warning signals.