Animal physiology

Baboon vaginal tract selects for favoured mates

Depending on the DNA of the male sexual partner, the vaginal tract of the female olive baboon either facilitates or hinders sperm survival. The vaginal tract of the female olive...

Octopus mating arm detects progesterone

The arm that male octopuses use for mating locates the oviduct of females by detecting progesterone. The tip of the specialised arm that male octopuses use during mating can detect...

Birds keep sharp vision running on glucose alone

Birds maintain sharp vision with a retina that receives almost no oxygen. Danish researchers have now shown how this is possible: a specialised eye...

Disrupting the muscle clock accelerates muscle breakdown

Zebrafish larva with individual muscle fibres labelled in separate colours. Source: King's College London Working nights disrupts the circadian rhythm of muscle cells and...