Giant mouse lemur has biggest testicles of all primates
If humans had proportional testicles they would be the size of grapefruits.
Cystic fibrosis gene therapy shows promising results for lung function in trial
Therapy to replace faulty gene responsible for cystic fibrosis shows positive but tentative results.
J2032: Pulsar to meet extremely bright star for 'astrophysical firework' display in 2018
Supernova the size of the city to meet one of the brightest stars in the galaxy.
How the woolly mammoth got its wool revealed through gene study
Woolly mammoth genome study shows how it adapted to life in the cold.
Why men have bigger brains than women: Oestrogen
Women have smaller brains than men because of hormones, scientists say.
Double-muscled pigs created through gene editing by South Korean and Chinese scientists
Genetically engineered pig breed could be first approved for human consumption.
When will Yellowstone supervolcano erupt again? Scientists might have worked it out
Arizona scientists say there is a way of working out when the volcano will erupt.
Nasa satellite images show China's giant solar panel expansion in Gobi Desert
Nasa Earth Observatory pictures show solar power plant has tripled in size in three years.
Asian black bears mistaken for 'puppies' for two years by Chinese villager
Yunnan Province villager would bath and comb the black bear's hair every day.
Angry-looking 48 million-year-old 'Jesus' lizard walked on water in Wyoming
Fossil of lizard that could walk on water points to how climate change affects tropical species.
Rosetta: Near-perfect circles on comet 67P are massive sinkholes
ESA's Rosetta spacecraft shows sinkholes on surface of 67P/Churyumov-Gerasimenko.
UK hottest day: Is it hot enough to fry an egg outside?
No it is not hot enough to fry an egg outside.
Crow with chutzpah surfs on back of mighty bald eagle mid-flight over Washington [Photos]
Washington amateur photographer captures moment a crow lands on a bald eagle.
Big Rip: Universe will pull itself apart in 22 billion years, mathematical model predicts
Mathematical formulation suggests ultimate fate of universe will involve 'Big Rip' scenario.
World UFO Day 2015: Why do people believe in unidentified flying objects, aliens and abductions?
The psychology behind belief in extra-terrestrials and their visits to planet Earth.
Asteroid Day: 'Asteroids are given bad reputation as angels of death, doom and destruction'
Astronomer says Asteroid Day should not focus on the threats they pose to the planet.
Human foetus ejection: Where babies are born without the mother thinking
Obstetrician Michel Odent discusses why childbirth is so difficult for modern humans.
Graphene 'industrial revolution': Artificial skin a step closer following production breakthrough
Scientists have discovered way of producing graphene 100 times faster than current methods.
Rats have happy dreams about food
Rats dream about how they will get tasty treats.
Great Barrier Reef: Evolutionary 'genetic rescue' means corals are adapting to global warming
Reef-building coral can pass its tolerance for heat to the next generation through DNA.
Asteroid Day: Everything you need to know about saving the world from space rocks
Asteroid Day to take place on 30 June – the anniversary of the 1908 Siberian Tunguska event.
Lake Texoma: Video shows lake drained by vortex that could suck full-sized boat in
Huge vortex appears in Oklahoma's Lake Texoma, draining 55,000 cubic feet of water per second.
CDC: Red stingy eyes after swimming is from urine in the water – not chlorine
CDC says red eyes from swimming pool is the result of chlorine binding with urine and sweat.
Hallucigenia: Half a billion-year-old worm had legs, spikes and sucker throat lined with teeth
Common ancestor of velvet worms reconstructed after scientists identify its head for first time.
Maningrida: Australian town infested with 25,000 venomous tarantulas in 'mega cluster'
Mega cluster of tarantulas cover 10km floodplain of remote town in the Northern Territory.
Peru: Dwarf porcupine species cannot jump
Tiny species of porcupine unable to jump across canopy gaps, Smithsonian study finds.
Dark matter in black holes can produce gamma-ray light, Nasa simulation shows
Simulation could provide tool to understand black holes and dark matter at the same time.
First wild kits born in England for 400 years: Watch baby beavers take first swimming lesson
Devon Wildlife Trust announce birth of kits in first wild beaver colony in England.
Male contraceptive pill breakthrough: Molecular events leading to sperm and egg fusion discovered
Protein that keeps sperm stable during fusion could lead to male contraceptive pill
Giddy up: Racehorses are getting faster suggesting possible 'breed for speed' mentality
Study of more than 70,000 horses since the mid-19th century shows increase in racehorse speed.