Scientists want to split Tyrannosaurus rex into three species. Not everyone is happy

Scientists want to split Tyrannosaurus rex into three species. Not everyone is happy

A team of researchers say variations they spotted in an examination of Tyrannosaurus fossils warranted the recognition of two additional species:T. imperator,meaning “tyrant lizard emperor,” and T. regina,meaning “tyrant lizard queen”.

  • byWill Dunham

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Fossils reveal doom for the dinosaurs came in springtime

Fossils reveal doom for the dinosaurs came in springtime

Scientists say well-preserved fish fossils are providing a deeper understanding of one of the worst days in the history of life on Earth.

  • byWill Dunham
Southern France was already irresistible to humans 54,000 years ago

Southern France was already irresistible to humans 54,000 years ago

Using new techniques,scientists have dated human remains to about 10,000 years earlier than previous finds in Europe.

  • byFranks Jordans
Sprinting,sweating and ‘nature’s jockstrap’:How we are born to run

Sprinting,sweating and ‘nature’s jockstrap’:How we are born to run

As early hominids,we ran to stay alive. Millennia later,feeling exhilarated by the need for speed,we just can’t stop.

  • byBill Hayes
Apex predator:Killer whales hunt the largest animal on earth

Apex predator:Killer whales hunt the largest animal on earth

A new study has shown for the first time that killer whales successfully hunted and killed blue whales on three separate occasions off the coast of Western Australia.

  • byDaisy Henry
Famed fossil hunter helped our understanding of human evolution

Famed fossil hunter helped our understanding of human evolution

In a remarkable life,Richard Leakey discovered hundreds of fossils,helped to preserve Africa’s wildlife and became an internationally renowned academic and philanthropist.

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How humans were shaped by a biological arms race between apes and snakes

How humans were shaped by a biological arms race between apes and snakes

Researchers have discovered snakes and apes have been locked in a deadly biological arms race,the effects of which can be seen in humans today.

  • byStuart Layt
‘Cool science’:Blue-tongued lizards in biological arms race for survival

‘Cool science’:Blue-tongued lizards in biological arms race for survival

The blue-tongued lizard has developed defences that make it almost impervious to red-bellied black snake venom,scientists have discovered.

  • byStuart Layt
Like elephants,grandmother giraffes spend years caring for young

Like elephants,grandmother giraffes spend years caring for young

Giraffes’ complex social networks are an anomaly in the animal kingdom,where an individual’s worth is based solely on their ability to reproduce and pass on their genes.

  • byJoe Pinkstone
Scientists find a new early human. Meet Nesher Ramla Homo

Scientists find a new early human. Meet Nesher Ramla Homo

The fragments of a skull and a lower jaw with teeth are 120,000 to 140,000 years old and could force a rethink of parts of the human family tree.

  • byChristina Larson
Weird ‘living fossil’ lives 100 years,pregnant for 5

Weird ‘living fossil’ lives 100 years,pregnant for 5

Females don’t hit sexual maturity until their late 50s,a new study said,and maybe strangest of all,they are pregnant for a long time.

  • bySeth Borenstein