Why aren't there giant mammals in the dinosaur era?
Prehistoric times are the era of giant animals, but the reason why in the age of dinosaurs did not have huge mammals is not everyone knows.The noise of the boat makes whales 'headache'
The buzzing sounds from the engines of commercial ships along the sea routes not only alter whale behavior but also affect other giant mammals underwater.Giant prehistoric beasts
Helicoprion sharks, mound lizards, dinosaurs, dinosaurs ... are giants of prehistoric creatures.