'Early humans ate grass like a cow'
- Lok Sabha polls: 11 parties come together to defeat Cong, counter Modi, say they are the 'first front'
- Lalu Prasad fights rebellion, 9 MLAs back to RJD fold, blames Nitish Kumar for hatching a conspiracy
- Shinde does a u-turn, says he meant to 'crush' social media, not electronic media
- Supreme Court rejects exemption plea, Subrata Roy to appear tomorrow
- AAP gears up for LS polls, party to add gas pricing issue in manifesto to target BJP, Cong
Early humans who roamed the African savanna three-and-a-half million years ago had a diet more like a cow than a Great Ape - comprising of grass and sedges, a new Oxford study has found.
Researchers found that Australopithecus bahrelghazali chomped its way through rushes and grasses rather than soft fruits preferred by its chimpanzee cousins, thanks to its powerful jaws and big grinding teeth.
The study shows the ancestral human diet diverged from that of the apes much sooner than previously thought, the 'Daily Mail' reported.
It provides early evidence of humans adapting their diet to suit their environment.
Researchers analysed the amount of carbon in teeth from A bahrelghazali specimens dug up from a fossil site in Chad with the help of a laser that freed carbon from the enamel.
This showed the creature's diet would have been rich in C4 plants - so-called because they contain four carbon atoms - such as grasses and sedges.
Similar evidence has shown the diet of other early humans in Africa like Paranthropus boisei was dominated by C4 plants.
However, these fossils predate P boisei by more than one and a half million years - suggesting their diet shifted relatively early to help exploit the local ecology of newly emerging habitats.
Ape-like A bahrelghazali had projecting jaws and was much smaller in size than modern humans. It walked upright but was probably unable to make tools.
It grew up to almost five feet tall and weighed up to eight stone - very similar to modern chimpanzees. Its brain was about a third of modern humans' and its jaws projected more than ours.
A bahrelghazali survived in an environment more open than usual by changing its diet to include C4 plants – the exploitation of which is uncommon among today's great apes including chimpanzees, said researcher Julia Lee-Thorp.
- At 23, the Indian creator of the smart ring is the youngest to address Mobile World Congress
- Gujarat Parivartan Party (GPP) joins hand with BJP
- Kejriwal letter questions Rahul on gas pricing, Ambani links
- Man immolates self in front of Assam secretariat
- Ex-Armyman, ISI spy for 2 years, held
- NIA nabs 2 from UP for blasts at Modi’s rally