Big, shape-shifting animals from the dawn of time
Tue Jul 11, 2017 3:12 am
Science Daily Geology
Major changes in the chemical composition of the world's oceans enabled the first large organisms -- possibly some of the earliest animals -- to exist and thrive more than half a billion years ago, marking the point when conditions on Earth changed and animals began to take over the world.
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Major changes in the chemical composition of the world's oceans enabled the first large organisms -- possibly some of the earliest animals -- to exist and thrive more than half a billion years ago, marking the point when conditions on Earth changed and animals began to take over the world.
Read more