Content by The Scientist

The underground hyphae of the honey mushroom Armillaria gallica may stretch over hundreds of meters and live for centuries, and the fungi accumulate relatively few mutations throughout their lives.

This glow-in-the-dark giant cockroach (Lucihormetica luckae) may have evolved its association with bioluminescent bacteria to mimic a toxic click beetle.

The olfactory antennules of juvenile shore crabs (Hemigrapsus oregonensis) have relatively large, flexible chemosensory hairs, which enable them to sniff like adult crabs (SEM, scale bar 200 microns).

A recent sunrise at North Twin Lake in Yellowstone National Park

A spotted owlet (Athene brama) roosts in a tree hollow in Kolkata, India.

The highly social giant otter (Pteronura brasiliensis) of South America has a vocal repertoire of at least 22 distinct calls, a study shows.

Aggregates of alpha-synuclein protein (pink) may contribute to nerve cell death in Parkinson's disease.

A small-spotted catshark (Scyliorhinus canicula) embryo is fed by a yolk sac, encased in a collagen capsule, and attached to the seafloor by long tendrils.

Pangolins (family Manidae) are insect-eating tropical mammals covered with protective keratin scales.

Bdelloid rotifers are microscopic freshwater animals with diverse jaw forms, seen here in a scanning electron micrograph.

A cross-section of a vascular bundle in the leaf of a dawn redwood (Metasequoia glyptostroboides)

Early studies on nerve electrophysiology took advantage of millimeter-wide giant axons in the European squid (Loligo vulgaris).

Screening for induced mutations in a flowering pathway uncovered tomato lines with higher fruit yields (right three plants) than standard canning tomatoes (far left).

A three-dimensional reconstruction shows how ice crystals (orange) form in the underground crown of an oat plant.

Brooding emperor penguins are less stressed by a camouflaged, transponder-reading rover than by human researchers.