Onchopristis was a giant sawfish which lived in the waters of Africa.
It could grow up to 8 metres long,
about 8 times taller than a normal human.
Although it is an ocean dwelling fish,
fossil evidence suggested that,
like salmon,
schools of Onchopristis would migrate into
freshwater rivers in the mainland to breed.
There they would lay their eggs
and they would be safe from
the big predators.
Onchopristis’ most feared predator is Spinosaurus,
as you can see here.
Sinornithosaurus was a deadly predator living in the late Cretaceous period.
Like its prey Microraptor, it could glide with feathers on its wings
yet on its legs, but Sinornithosaurus was far different
from any other dinosaurs…
Evidence from a recent study shows that
Sinornithosaurus had groves on its teeth like a Gila monster,
used for injecting poison into its prey.
Also, scientists have even located where the venom sacs were.
This was revelutionary, because nobody had
seen a dinosaur which could use poison to kill!
Heres a video showing a Sinornithosaurus having an easy kill.
Gigantoraptor was the biggest raptor,
and was similar to Archeopteryx and Velociraptor.
It was discovered by Chinese paleontologist Xu Xing
on April in 2005, in Inner Mongolia.
Gigantoraptor looks like Oviraptor,
but Gigantoraptor mostly stays near its nest,
keeping a watchful eye over its eggs.
Gigantoraptor seems, safe in the deserts of Mongolia,
but around once a month, there are
sandstorms which bury them alive.
Like most birds, male Gigantoraptors are
more colorful than females,
in order to attract females.
Here’s a video featuring a Gigantoraptor
defending its nest:
SurprisingAnimals 