Megaraptorids are known for somewhat small but sharp teeth, air-filled bones, and powerful forelimbs with enormous claws.

Kangaroos are the largest marsupials alive today. The largest species of kangaroo (by weight) is the red kangaroo, which can stand more than five feet tall-not including a three-foot-long tail-and ...

DINOSAUR hunters have made a spectacular discovery which sheds new light on a giant “mega raptor” that stalked the Earth 120 ...

Volunteer fossil hunters and trained paleontologists uncover a new Australian dinosaur and the oldest known megaraptorid.

Visualizing mechanical stress distribution in soft and live biomaterials is key to understand biological processes and improve material design. Here, the authors design a biosensor to visualize ...

From the start, the earthworm is built for romance, with four or five pairs of hearts. Finding a match, though, that’s a ...

Researchers have discovered a 149-million-year-old bird fossil in southeastern China, featuring a short tail structure that ...

A mantis shrimp's punch creates high-energy waves. Its exoskeleton is designed to absorb that energy, preventing cracking and tissue damage.

It has a long neck, tail and legs, and the extended hands give the forelimbs more length, according to the study. Other ornithomimids were covered with feathers, according to BBC Wildlife ...

Their specialized forelimbs allow for the wing morphing motion to couple with the flapping motion during their level flight. Previous flyable bionic platforms have successfully applied bioinspired ...

The researchers note that most members of the family also had small heads and long necks, forelimbs, and hindlimbs. In 2014, a team of archaeologists and paleontologists were working at a dig site ...

Tau hyperphosphorylation and conformational changes in the brain parenchyma start around seven months. Tangle-like pathology is mainly observed in the brain stem and spinal cord, and to a lesser ...