Just under 3.3 million bacterial genes have been uncovered from the human gut, more than 150 times as many as reside in the entire human genome.
The brain adjusts the speed of signals through neurons so that signals from the left and right ears arrive at about the same time.
Comparisons among 776 mammal species indicate that tree-dwelling animals have longer lifespans.
Whiptail lizards manage to get away with asexual reproduction by doubling their number of chromosomes.
Certain proteins which can trigger cell death appear to be vital for promoting new tissue production from stem cells.
The parasite Trypanosome cruzi has the ability to insert its genes into the human genome.
A female cricket can forewarn her unborn offspring of nearby dangers.
Habitually shoeless runners have a unique step that may be better for our feet than even the most expensive, cushioned running shoe.
Bdelloid rotifers protect themselves from fungal infection by completely drying themselves out. This strategy may also be responsible for them giving up sex.
The echolocation abilities of bats and whales, though different in their details, rely on the same changes to the same gene.
