- Director:Heather Hawthorn Doyle,Mars Horodyski
- Writer:J.J. Johnson,Christin Simms
- Cast:Saara Chaudry,Nicola Correia-Damude,Michela Luci
|Episode credited cast:|
|Saara Chaudry||-||Saara Jain|
A fossil tooth found in Russia in 2015 suggests that a small population of woolly mammoths may still have existed as recently as 4,300 years ago.
Scientists can determine a woolly mammoth's age by looking at the rings in its tusks, much like tree trunk rings.
The woolly rhinoceros co-existed with the woolly mammoth.
Mammoth tusks could range from 10-13 feet in length.
The lumps on a woolly mammoth's back were extra stores of fat to help the animal survive the winter.
The discovery of multiple frozen woolly mammoth carcasses has provided scientists with some of the best-preserved specimens ever available for study.
Climate change and the arrival of human hunters led to the eventual extinction of the woolly mammoth.
Though the Smilodon dates back over two million years to the late Pleistocene Epoch, it became extinct only about 10,000 years ago.
The Smilodon is often called a saber-toothed "tiger," though it's not related to tigers.
The name Troodon is Greek for "wounding tooth," a reference to its unique, serrated dentition.
The Troodon's eyes were set in the front of its face, giving it binocular vision like a human.
It is believed the Troodon had really good night vision.
The Troodon was an Omnivore, so it ate plants and animals.
Discovered in 1856, the Troodon was thought to be a lizard until 1901, and its proper classification as a theropod didn't come until the 1930s.
Nanuqsaurus skull and jaw fragments were first found in 2006 at the North Slope of Alaska.
Nanuqsaurus was related to Tyrannosaurus rex, but at 20 meters long was only about half the size of its fearsome cousin.
Nanuqsaurus may have been smaller than Tyrannosaurus rex because the long, cold Alaskan winters made for a smaller yearly food supply.
It is believed the Nanuqsaurus relied heavily on smell to hunt its prey.
The name Nanuqsaurus translates as "polar bear lizard," a reflection of its Alaskan origins.