Q. What was the most dangerous prehistoric marine animal?
Predator X
Q. What is the most dangerous sea creature that ever lived?
The Most Dangerous Ocean Creatures
- Box Jellyfish. A Box Jellyfish, seen from the safety of tempered aquarium glass.
- Blue-Ringed Octopus. A Blue-Ringed Octopus in Lembeh Strait, Sulawesi, Indonesia.
- Stingrays.
- Beaked Sea Snake.
- Crocodiles.
- Great White Shark.
Q. What was the biggest prehistoric water animal?
Ichthyosaurs. The largest ichthyosaur was Shonisaurus sikanniensis at ~21 metres (70 ft) in length. This would make it the largest extinct marine animal.
Q. What was the biggest extinct animal ever?
blue whales
Q. What is the largest carnivore to ever live?
Spinosaurus was the biggest of all the carnivorous dinosaurs, larger than Tyrannosaurus and Giganotosaurus. It lived during part of the Cretaceous period, about 112 million to 97 million years ago, roaming the swamps of North Africa.
Q. Why did T-Rex have small arms?
rex’s puny, undersized arms. According to Steven Stanley, a paleontologist at the University of Hawaii at Manoa, T. rex arms were used to slash prey in close proximity to the dinosaur. And the short arm length was actually more beneficial for slashing, considering the size of T.
Q. Did T Rex really have small arms?
The arms of T. Rex were fairly limited in their scope–they could only swing across an angle of about 45 degrees, compared to a much wider range for smaller, more flexible theropod dinosaurs like Deinonychus–but then again, disproportionately small arms wouldn’t require a wide angle of operation.
Q. Why were carnotaurus arms so small?
As fearsome as Carnotaurus looked, though, it’s hard not chuckle at the dinosaur’s arms—the hand and lower part of the forelimb were so reduced in size that some paleontologists have viewed them as vestigial structures that have almost entirely lost their ability to function in acquiring prey.
