Warm-bloodedness may have developed 20 million years earlier than previously thought

Researchers have long speculated that the 'body heater' in land animals evolved some 270 million years ago, according to Daily mail

However, new evidence has suggested that warm-bloodedness may have come about 20 to 30 million years earlier.

After analyzing the ancient bones of a long-extinct land animal that lived 300 million years ago, the team discovered its fossilized remains had the same bone form found in today's land mammals

The breakthrough research was conducted by a team, who looked at humerus bones and femurs of long-extinct animals – specifically the mammal predecessor Ophiacodon that lived 300 million years ago.

NASA probe Juno completes latest flyby of gas giant Jupiter

NASA’s Juno spacecraft collected more crucial data during its latest flyby of Jupiter, the probe’s fifth science orbit since beginning its monumental mission.

Juno’s many onboard instruments collected various forms of data during the close flyby. These readings will be returned to Earth for analysis along with images captured by the spacecraft’s JunoCam, according to RT.

The spacecraft got closest to the center of the gas giant at about 2,200 miles (3,500km) above Jupiter’s “mysterious cloud tops” – the secrets of which, NASA believes, the flyby will help reveal.

Motor mouth: T. rex could bite with the force of three cars

Scientists have come up with one more reason to be amazed by Tyrannosaurus rex. When the huge carnivorous dinosaur took a bite, it did so with an awe-inspiring force equal to the weight of three small cars, enabling it to crunch bones with ease.
Researchers said a computer model based on the T. rex jaw muscle anatomy and analyses of living relatives like crocodilians and birds showed its bite force measured about 8,000 pounds (3,630 kg), the strongest of any dinosaur ever estimated.
In quantifying the power of T. rex's chomp, they also calculated how it transmitted its bite force through its conical, seven-inch (18-cm) teeth, finding it generated 431,000 pounds per square inch (30,300 kg per square cm) of tooth pressure, another measure of its power, on the contact area of the teeth.

Shedding light on Earth's first animals

More than 550 million years ago, the oceans were teeming with flat, soft-bodied creatures that fed on microbes and algae and could grow as big as bathmats. Today, researchers, Riverside are studying their fossils to unlock the secrets of early life. According to Science daily

In their latest study, Scott Evans, a graduate student in the Department of Earth Sciences, and Mary Droser, a professor of paleontology, show that the Ediacaran-era fossil animal Dickinsonia developed in a complex, highly regulated way using a similar genetic toolkit to today's animals. The study helps place Dickinsonia in the early evolution of animal life, and showcases how the large, mobile sea creature grew and developed.

Dickinsonia was a flat, oval-shaped creature that ranged in size from less than an inch to several feet, and is characterized by a series of raised bands -- known as modules -- on its surface. These animals are of interest to paleontologists because they are the first to become large and complex, to move around, and form communities, yet little is known about them.

Snail's DNA secrets unlocked in fight against river disease

Scientists have decoded the genome of a snail involved in the spread of a deadly parasitic disease.

They say the information will help in the fight against schistosomiasis, an infection caused by a parasitic worm that lives in streams and ponds, according to BBC.

The disease affects millions of people a year in sub-tropical and tropical regions.

More than 100 researchers from around the world have unlocked the DNA secrets of a snail that transmits the parasite.

Subcategories