Discover the most feared prehistoric terrorist bird

Scientists have discovered the most feared prehistoric carnivorous bird (also known as terrorist), named Llallawavis scagliai.

The scariest raptors are 1.2m high, weighs 40kg

This prehistoric scary predatory bird belongs to the Phorusrhacidae group , cannot fly; living in South America from about 62 million - 3 million years ago, before being extinct about 2.5 million years ago.

Portrait of the new terrorist bird, Llallawavis scagliai.

The Phorusrhacidae bird group is about 3 meters tall, has a beak like an eagle with its head as big as a horse's head. They use a giant beak to grab prey or attack precisely the vital parts of their prey, causing the opponent to quickly be captured.

The discovery of new species Llallawavis scagliai helps archaeologists gain a deeper understanding of the family members of the prehistoric carnivorous bird.

More than 90% of the fossil skeleton of Llallawavis scagliai was discovered in northeastern Argentina in 2010. It is the most complete specimen of terrorist birds ever found.

The skeleton of Llallawavis scagliai is on display at the Lorenzo Scaglia Natural Science Museum in Mar del Plata, Argentina.

Dr. Lawrence Witmer, an Ohio University archaeologist, said: 'Finding a complete fossil like Llallawavis scagliai's is rare. That's a very interesting finding. '

According to scientists, Llallawavis scagliai lived about 3.5 million years ago, near the end of the reign of terrorist birds.This carnivorous bird stands about 1.2m tall and weighs about 40kg.

Dr. Federico Degrange, a researcher at the Center for Earth Science Research in Argentina, said: 'This finding shows that the terrorist species are more diverse in the Pliocene than the previous scientific thought. . It will help us know the cause of decline and extinction of this interesting group of birds. '

The CT scan results in the internal structure of the terrorist's ear showing that its hearing accepts small, soft, deep sounds, and the bird is capable of emitting an ostrich-like sound. Dr. Witmer said: 'Low-frequency sound helps animals communicate at a distance, especially with predators, it can easily sense the movement of prey'.

The researchers hope further analysis will help better understand the vision and other senses of the new terrorist bird.