When the Invasion of Land Failed
When the Invasion of Land Failed The invasion of land by ocean-dwelling plants and animals was one of the most revolutionary events in the evolution of life on Earth, yet the animal invasion almost…
Specifikacia When the Invasion of Land Failed
When the Invasion of Land Failed
The invasion of land by ocean-dwelling plants and animals was one of the most revolutionary events in the evolution of life on Earth, yet the animal invasion almost failed--twice--because of the twin mass extinctions of the Late Devonian Epoch. If those extinctions had been just a bit more severe, spiders and insects--instead of vertebrates--might have become the ecologically dominant forms of animal life on land.This book examines the profound evolutionary consequences of the Late Devonian extinctions and the various theories proposed to explain their occurrence. Some 359 to 375 million years ago, these catastrophic events dealt our ancestors a blow that almost drove them back into the sea.
This gap is why the idea of "fish with feet" seems so peculiar to us, yet such Only one group of four-limbed vertebrates exists on Earth, while other tetrapod-like fishes are extinct.
When the Invasion of Land Failed
The Invasion of the Tearling
The U.S. Invasion of Grenada
Invasion of the Body Snatchers
Invasion of the Body Snatchers
Invasion of the Italian Mainland
Invasion of the Living Ted