Cold snaps in subtropical regions can create strange scenes. In places like South Florida, a sudden temperature drop can ...

Chimney sweeps repeatedly find nests and carcasses of birds and small mammals. Pigeons, blackbirds, and even squirrels often fall into chimneys. Most do not survive the fall. Jackdaws, however, even ...

The famous Ebbinghaus illusion, named for its discoverer, the German psychologist Hermann Ebbinghaus (1850–1909). Despite appearances, the two orange circles are the same size. Have you ever looked at ...