Science Visualized

Animals

Some young sea spiders can regrow their rear ends

Juvenile sea spiders can regenerate nearly all of their bottom halves — including muscles and the anus — or make do without them.

Physics

Tiny bubbles that make icicles hazy are filled with water, not air

Like tree rings, layers of itty-bitty water pockets also preserve a record of an icicle’s growth.

Health & Medicine

Fungi that cause serious lung infections are now found throughout the U.S.

Doctors should be on the lookout for three types of fungi that, when inhaled, can lead to serious infections, researchers say.