The ancestors of salmon have sharp teeth 20cm long

Scientists have just given evidence that prehistoric salmon has extremely sharp teeth and weighs more than 180 kilograms living on the Pacific coast.

According to Fox News, the ancestors of active salmon in California's rivers now live 5 to 11 million years ago.

The image of the bear that caught the giant salmon lived about 5 to 11 million years ago.

Salmon in this period lived in the Pacific Ocean, had "terrible" body, weighed over 180kg, about 2.7 meters in length, sharp teeth like daggers about 20cm long.

According to researchers from California State University, Stanislaus, Turlock, California, USA, salmon use sharp teeth to help them protect eggs during labor.

The research team led by Julia Sankey experimented with about 51 fossil samples from extinct salmon species in both freshwater and saltwater environments.

Sankey said: "Our study of this giant salmon helps to fill in previous incomplete insights. Explain how they exist and grow, changing into migrant life every time they give birth. eggs like salmon today ".

The new study shows that this salmon species has migrated from the Pacific to freshwater rivers to lay eggs.

Mr. Sankey said: " The salmon teeth live in a fresh water environment that is not long, not sharp. Meanwhile, the teeth of the species living in saltwater are often straight, very sharp and long. Ancient has changed the habitat from saltwater to freshwater like salmon today. "