The African clawed frog’s ancestor inherited one set of chromosomes each from two different now-extinct species and doubled its whole genome some 18 million years ago.
Hints of Another Human Ancestor?
Hints of an unidentified, extinct human species have been found in the DNA of modern Melanesians - those living in a region of the South Pacific, northeast of Australia. According to new genetic modelling, the species is unlikely to be Neanderthal or Denisovan - two ancient species that are represented in the fossil record - but could represent a third, unknown human relative that has so far eluded archaeologists.
Neanderthals at the Medical Conference
DNA acquired from breeding with Neanderthals may explain why people of European descent respond differently to infection than those of African descent, two studies suggest.
38% of British people feel as though they have difficulty being understood by other Brits. The reason: there is a ‘noticeable change’ in British accents every 25 miles.
It's Time to Keep an Eye on the Cops
A recent study of 7 police forces in the US and the UK showed that complaints against officers fell by 93% after they started wearing cameras on their uniforms.