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Wolves return to Netherlands after 140 years

The Netherlands has its first resident wolf population in 140 years, according to ecologists.
Wolves were hunted out of many European countries over a century ago but have gradually been migrating back across the continental mainland.
Occasional wolf sightings have been made in the Netherlands since 2015, according to BBC.
But these animals were previously thought to be animals that had crossed over temporarily from Germany and would subsequently return there.

Ancient, four-legged whale with otter-like features found along the coast of Peru

Cetaceans, the group including whales and dolphins, originated in south Asia more than 50 million years ago from a small, four-legged, hoofed ancestor. Now, researchers reporting the discovery of an ancient four-legged whale -- found in 42.6-million-year-old marine sediments along the coast of Peru -- have new insight into whales' evolution and their dispersal to other parts of the world, according to Science Daily.

The presence of small hooves at the tip of the whale's fingers and toes and its hip and limbs morphology all suggest that this whale could walk on land, according to the researchers. On the other hand, they say, anatomical features of the tail and feet, including long, likely webbed appendages, similar to an otter, indicate that it was a good swimmer too.

"This is the first indisputable record of a quadrupedal whale skeleton for the whole Pacific Ocean, and the most complete outside India and Pakistan," says Olivier Lambert.

Climate change: Global impacts 'accelerating'

The World Meteorological Organization (WMO) says that the physical and financial impacts of global warming are accelerating.

Record greenhouse gas levels are driving temperatures to "increasingly dangerous levels", it says.

Their report comes in the same week as the International Energy Agency (IEA) reported a surge in CO2 in 2018.

This year's State of the Climate report from the WMO is the 25th annual record of the climate.

Paleontologists report world's biggest Tyrannosaurus rex

University of Alberta paleontologists have just reported the world's biggest Tyrannosaurus rex and the largest dinosaur skeleton ever found in Canada. The 13-metre-long T. rex, nicknamed "Scotty," lived in prehistoric Saskatchewan 66 million years ago, according to Science Daily.

"This is the rex of rexes," said Scott Persons, lead author of the study and postdoctoral researcher in the Department of Biological Sciences. "There is considerable size variability among Tyrannosaurus. Some individuals were lankier than others and some were more robust. Scotty exemplifies the robust. Take careful measurements of its legs, hips, and even shoulder, and Scotty comes out a bit heftier than other T. rex specimens."

Dinosaurs could hear as well as birds - making them even better hunters than previously believed, according to new research

Dinosaurs could have sensed sound as sharply as birds, making them even better hunters than previously believed.

The process used by birds to hear has been detected in alligators, which are the closest living relative to the dinosaur, according to Daily Mail.  

It could means that T-rex and other carnivore dinosaurs identified the location of prey with their ears as much as their eyes.

An owls' sense of hearing is so sharp it can hear a mouse moving around under a covering of snow. 

Birds are exceptionally good at creating neural maps of the location of where sounds originated.   

These maps of where the sound came from uses a technique called the 'interaural time difference'.