For flycatchers, the attractiveness of male birds is tied to the length of their sperm.

Salamanders’ and lizards’ tail regeneration depends on the quality of their neural stem cells.

Progesterone helps in the transportation of eggs within the mouse reproductive system.

A marine flatworm swarms in a circular fashion off the coast of Guernsey.

Researchers have recently identified a many-legged invertebrate from the Silurian period.

Despite being made of different materials, zebrafishes’ and land animals’ scales form in a similar process.

Researchers have identified what makes synapses strong or weak in fruit flies.

A new study describes an unusual water harvesting method in plants.

Numbers of avian species in the Mojave Desert have fallen.