Archives for posts with tag: human

Breast-feeding mums produce different milk for girl and boy babies – girls get more fluids, boys get more fats or proteins.

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Human footprints found in the UK, just outside Norfolk, are the oldest found so far outside Africa. These are between 780,000 and one million years, and were made in estuary mud by a group of five adults and young people.

Contrary to previous theories, there may only have been one human species walking the earth millions of years ago. According to a paper in Science, Homo habilis, Homo rudolfensis and Homo erectus may have been part of the evolution of humans, rather than separate species.

Gibbons who inhale helium sing like sopranos. Researchers looked at the vocal cords of gibbons that had inhaled helium and saw that they could control their vocal tracts in the same way that soprano singers can – this was thought to to be unique to humans. See the original research in the American Journal of Physical Anthropology.

Helium is a natural gas that cannot be synthesised, and it is vital for MRI scanners and radiation monitors. There is a helium shortage worldwide, and it could run out in 25-30 years. Because of a US law passed in 1996, according to Robert Richardson, professor of physics at Cornell University in Ithaca, New York, helium became too cheap to recycle, and was no longer regarded as precious.  Professor Richardson believes that our reserves of helium have been “squandered”.

Crows can recognise familiar human (and bird) voices, which could explain how they are so successful – they can learn which people and birds to avoid, and which are safe.

Read the abstract in Animal Cognition.

Humans share 50% of their DNA with bananas according to Professor Steve Jones (thanks to the Really Cool Journal).

BananaIt’s a great fact, but it’s probably more important that we share 98% of our DNA with a gorilla.

Koalas have similar fingerprints to humans. Gorillas and chimpanzees also have fingerprints.

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