Why do flies congregate at rotten fruit?

Partly because when male fruit flies detect food odors, they…

Cold blood, complex heart

Alligator hearts contain a specialized, electrically active structure…

New human relative unearthed from the Cradle of Humankind

Fossils of a new human species have been…

Placenta or mammary glands?

Similarities underlie the differences between how mammals nourish their…

Investing in the next generation

Western honey bee queens change the size of their eggs depending on…

The genes that turned fins into limbs

A study involving catsharks and mice has revealed an important…

Does herd immunity occur in bacteria?

As it turns out: yes.

Ironing out how ticks use haemoglobin

Understanding these mechanisms could help to develop new…

When losing is a winning strategy

Switching between two lifestyles that would individually result in…

How bats save energy

Tent-making bats periodically reduce their heart rate while resting.