An octopus has three hearts. Two pump blood past the gills, and the third sends it round the rest of the body.
Facts
One fact at a time.
Interesting facts, each added on the day I find it, newest first. Every one links to its source. Tap a date to get a link to that fact.
November 2026 2 facts
Source (smithsonianmag.com, opens in a new tab)
Botanically, a banana is a berry. A strawberry isn’t: it’s an aggregate fruit, made of many smaller fruits.
October 2026 1 fact
A day on Venus is longer than its year. It takes 243 Earth days to spin once, but only 225 to go round the Sun.