Middle Paleozoic Life: New Predators & First Land Animals (from Tiktaalik) | GEO GIRL
15:32
Geology of the Silurian & Devonian 444 - 359 Mya | GEO GIRL
26:33
Life in the Cambrian & Ordovician ~542-444 mya | GEO GIRL
24:12
When Life Moved To Land & The Disastrous Consequences | GEO GIRL
16:24
Neil Shubin (U. Chicago): Finding Tiktaalik, the Fossil Link Between Fish and Land Animals
8:17
When Animals Learnt to Bite, the Evolution of the Jaw Bone
24:27
How Did Pleistocene Megafauna Go Extinct? GEO GIRL
9:08
When Fish First Breathed Air
19:23