Didn't sleep well last night, kept waking up to thoughts of whether all birds have hollow bones. Penguins and Kiwis don't btw. Emus do, though. - ThreadSky

janipeippo.bsky.social • 85 days ago

Didn't sleep well last night, kept waking up to thoughts of whether all birds have hollow bones.

Penguins and Kiwis don't btw. Emus do, though.