Fun Fact Doodles

Streaked shearwaters almost always defecate in flight, with a study recording nearly 200 events across 15 birds.

An awkward parrotfish explains how coral chips become sand, with a local Maldives measurement.

Great frigatebirds can enter slow-wave sleep during ocean flights, but they sleep far less in the air than on land.

A honeybee can learn to choose one human face photo from similar decoys, revealing pattern recognition without proving human-like identity recognition.

A northern leopard frog uses retracting eyes as an accessory swallowing tool, and blocking the eye muscles increased swallows per cricket by 74%.

A remora can dive into a manta ray's cloaca, but scientists still do not know why.

Army ants link their bodies across a gap, then adjust or dismantle the living bridge as trail traffic changes.

A myotonic goat can stay conscious while a CLCN1 variant makes its muscles stiffen and relax slowly after a startle.

A male pufferfish spends days sculpting a giant geometric sand nest to attract a mate.

A 12-rhino study found that hanging by the feet slightly improved gas exchange compared with lying sideways, though both postures caused low oxygen and high carbon dioxide.

Cats lack a functional sweet-taste receptor because the Tas1r2 gene is pseudogenized.

Some sloths make a once-a-week trip from the canopy to the ground just to poop, and science still cannot pin down why.