Science stories you may have missed:
A new species of tyrannosaur that stalked North America around 80 million years ago has been discovered by scientists in Canada. BBC
The dinosaur lived in the late Cretaceous Period, making it the oldest known tyrannosaur from North America.
Another species of tyrannosaur, a Daspletosaurus, was found in Canada in 1970, a study says.
Researchers say the new discovery has given them insights into the evolution of tyrannosaurs.
Standing roughly 8ft (2.4m) tall, the predator would have cut an intimidating figure.
Like its tyrannosaur relatives, the carnivorous dinosaur had a long, deep snout, bumps on its skull and large steak-knife-like teeth measuring more than 7cm (2.7in) long.
The predator's name - Thanatotheristes degrootorum - translates to "Reaper of Death" from the Greek.
"We chose a name that embodies what this tyrannosaur was as the only known large apex predator of its time in Canada, the reaper of death," said Darla Zelenitsky, a palaeobiology professor who co-authored the study.
1000 years from now
Remains of Novissima hominid discovered in sea where Florida once was.
May have been member of the ruling or wealthy class.
A new species of the extinct Homo sapiens that inhabited North America around 1000 years ago has been discovered by scientists exploring the now submerged area which was once the state of Florida.
This member of the Human race lived in the period before global warming destroyed most life on the planet.
Researchers who were part of the 32nd exploration force from The United Federation of Civilized Planets say the new discovery has given them insights into the evolution of the extinct Homo sapiens.
The well preserved remains were found in a tomb which was more ostentatious than any other found from this era. This led to the presumption that he may have been a member of the ruling or wealth class.
The crypt and a coffin were covered in a layer of .25 inch gold plate. Artifacts of photographs and paintings in frames covered in gold leaf which were found in what is presumed to have been a tomb are being analyzed but due to submersion in sea water many have deteriorated beyond recognition.
Standing roughly 6’ 3” tall the remains were that of a male. He would have been taller than the average height of 5’ 9” of men of this era.
The fact that the remains had no teeth and had dentures while similar species for the period had all or most of their teeth suggests that he subsisted on a tooth rotting diet of sugar and carbohydrates.
The skeletal remains also differed from those of similar species in that the fingers of the hands were 3.5 inches as compared to an average of 4 inches.
The cranial cavity was approximately 75% smaller than those of other similar species of the era leading to speculation that it had a lower intelligence.
Scientists chose the name Novissima hominid, Latin for last man, because this creature may have been one of the last members of what was called the human race.