A swollen wing vein helps butterflies detect low-frequency sounds.

Male rodents exposed to nicotine had changes in sperm genome methylation and produced pups and grandpups with abnormal behavior.

Animals’ tails swat away insects using both wind and whack.

Modern humans retain DNA sequences from Neanderthals related to fighting off RNA-based viruses.

The immunologists, honored with the 2018 award in Physiology or Medicine, pioneered immunotherapy, which harnesses the body’s immune system to fight cancer.

Belly fat helps fight infection, but is also a common site of metastasis.

Methylation patterns at so-called metastable epialleles in the genome stamp a memory into each of our cells.

Hanging in front of the abdomen like an apron, the depot of visceral fat known as the omentum helps regulate immune responses.

Controversy surrounding a mathematical model to explain the so-called “greater variability of males” hypothesis fells two versions of a paper—but critics of the work wish it were still published.