What is linhenykus.?

Linhenykus is a genus of theropod dinosaur that lived in what is now Mongolia during the Late Cretaceous period, about 70 million years ago. The name Linhenykus means "tiny one from Linhe", and it was named after the Linhe locality where its fossils were found. It is known from a single, almost complete fossil specimen, making it one of the best-preserved fossils of a theropod dinosaur in the world.

Linhenykus was a small dinosaur, only about 80 centimeters long and weighing around 1 kilogram. It had a short, pointed snout and large eyes, as well as sharp teeth that it likely used to catch small prey. One of its most distinctive features was its short arms, which were only about 6 centimeters long and had two fingers each. This is the smallest number of fingers found in any theropod dinosaur, and it suggests that Linhenykus was a highly specialized predator that relied on its powerful legs and jaws to catch and kill prey.

Linhenykus was likely a member of the Alvarezsauridae family, a group of small, bird-like theropods that are known for their unusual anatomy, including very short arms and unique hand morphology. It lived in a region that was probably dominated by vegetation, although there were also likely some small mammals and insects for it to prey on. Its discovery has helped scientists to better understand the evolution and diversity of theropod dinosaurs during the Late Cretaceous period.