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Female wētā insects have two sets of genitals and eat male ejaculate

Life

Female wētā insects have two sets of genitals and eat male ejaculate

Female short-tailed ground wētās have two sets of genitals, one to receive sperm and the other to receive extra ejaculate that they eat to survive parenting

News

Contraceptive pills

Health

Male contraceptive pill is safe and effective in tests in mice

News

The parthenogenetic mouse and the offspring. The parthenogenetic mouse was generated by targeted epigenetic rewriting of multiple imprinting control regions. The parthenogenetic mouse exhibited normal reproductive performance as an adult.

Life

Mouse pups born from unfertilised eggs through genetic manipulation

News

The fossilised oviraptorosaur dinosaur embryo curled up in its egg

Life

Fossilised dinosaur embryo found exquisitely preserved inside egg

News

Beautiful little Zebra finch in the wild.

Life

Zebra finch songs alter the behaviour of their chicks' mitochondria

News

A C-shaped xenobot pushes along a cell to create a new clump of cells

Life

Living robots made from frog cells can replicate themselves in a dish

News

Vials of donor sperm frozen by liquid nitrogen

Health

Sperm quality has been declining for 16 years among men in the US

News

spider

Life

Female black widow spider mates with and eats multiple males

News

Ewes prefer to mate with submissive rams when given a choice

Life

Ewes prefer to mate with submissive rams when given a choice

News

How nature, nurture and sheer randomness combine to make a unique you

Life

How nature, nurture and sheer randomness combine to make a unique you

We’re slowly beginning to unpick the complex interplay of genes, environment and experience that make you who you are – and like no one else who ever existed

Features

Environment

Female banded mongooses start wars so they can mate with rival males

News

Health

How defining women as baby-makers backfired spectacularly on science

Culture

Health

Human eggs release chemicals that attract some sperm more than others

News

Health

End of one-child policy in China linked to rise in birth anomalies

News