Walking with Monsters
550 million years ago, our ancient ancestors evolved teeth and all manner of new weapons.
550 million years ago, our ancient ancestors evolved teeth and all manner of new weapons.
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By 280 million years ago, a new group of animals and plants took over - the reptiles.
Next it was the turn of the fish to grow larger and take over the role of top predator.
550 million years ago, our ancient ancestors evolved teeth and all manner of new weapons.
Lives are short and difficult.
A look at the science supporting Darwin's idea that humans have an ancestral connection with the ape.
The 120-million-year reign of the dinosaurs ended when mammals became the fiercest creatures on the planet.
Mammoths meet danger crossing the Alps, but the biggest dangers are awaiting their return.
Revealing the exotic, oversized creatures that inhabited South America one million years ago.
The beginnings of mankind can be traced back 3.2 million years to Ethiopia.
Going back 25 million years to the time of the indricothere, which was the size of a rhino.
A pregnant basilosaurus is forced to kill the young of a smaller whale.
Special effects filled documentary beginning 49 million years ago.
Dinosaurs are extinguished by an asteroid in prehistoric Idaho.
Dinosaurs thrived during springtime when ferns and evergreens reappeared in the polar forest.
Prehistoric flying reptiles.
Large marine reptiles command the seas during the late Jurassic period.
Colorado was once a desert home to dinosaurs.
The life of the first reptilian carnivores on Earth, told through computer animation.
By 280 million years ago, a new group of animals and plants took over - the reptiles.
Next it was the turn of the fish to grow larger and take over the role of top predator.
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