https://padlet.com/lnolasco/q7o6q03a3e69qkng en-us 2020-11-29 23:57:46 UTC 2020-11-30 00:31:37 UTC hello@padlet.com lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969533166 2020-11-29 23:59:51 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969533166 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969533902 2020-11-30 00:00:25 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969533902 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969534838 2020-11-30 00:01:17 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969534838 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969540042 2020-11-30 00:05:07 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969540042 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969541710 2020-11-30 00:05:55 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969541710 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969542611 2020-11-30 00:06:31 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969542611 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969547813 2020-11-30 00:10:19 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969547813 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969548639 2020-11-30 00:10:52 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969548639 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969549596 2020-11-30 00:11:30 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969549596 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969550202 2020-11-30 00:11:59 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969550202 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969560850 2020-11-30 00:18:48 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969560850 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969561540 2020-11-30 00:19:15 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969561540 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969563011 2020-11-30 00:20:08 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969563011 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969564767 Nobody knows exactly when life began. The oldest confirmed fossils, of single-celled microorganisms, are 3.5 billion years old. Life may have begun a bit earlier than that, but probably not while huge rocks were still raining down on Earth. Life may have begun in warm alkaline vents on the seabed, or in open water, or on land. We don't know, and we don't know what the first organisms were like.]]> 2020-11-30 00:21:14 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969564767 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969566808 Soon after animals evolved, evolution went through two major growth spurts. In the Cambrian Explosion, it seems almost every group of modern animals appeared within tens of millions of years. This apparent 'explosion' may be partly down to better fossilisation, as many animals now had hard shells. Then 489 million years ago, each animal group expanded in the Great Ordovician Biodiversification Event.]]> 2020-11-30 00:22:23 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969566808 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969569465 At the same time that the dinosaurs were spreading and diversifying, the first mammals evolved. Their ancestors were reptiles called cynodonts, whose faces looked a little like those of dogs and may have had fur or whiskers. Early mammals such as Morganucodon were small and shrew-like, and probably only active at night. This may have spurred them to evolve warm-bloodedness: the ability to keep their body temperature constant.]]> 2020-11-30 00:24:03 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969569465 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969570412 2020-11-30 00:24:39 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969570412 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969570755 2020-11-30 00:24:52 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969570755 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969571198 2020-11-30 00:25:10 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969571198 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969572213 Boom, you're extinct. 65 million years ago, a huge chunk of rock from outer space smashed into what is now Mexico. The explosion was devastating, but the longer-term effects were worse. Dust was thrown into the upper atmosphere and blocked out sunlight, and in the ensuing cold and darkness Earth suffered its fifth and last mass extinction. The dinosaurs were the most famous casualties, but pterosaurs and giant marine reptiles were also wiped out.]]> 2020-11-30 00:25:43 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969572213 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969575531 2020-11-30 00:27:47 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969575531 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969576646 2020-11-30 00:28:22 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969576646 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969576861 2020-11-30 00:28:31 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969576861 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969577186 2020-11-30 00:28:43 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969577186 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969578223 The first apes appeared in Africa around 25 million years ago. Then at some point, the group split into the ancestors of modern humans and the ancestors of modern apes. It's hard to say exactly when, but thanks to modern genetics and a host of fossil discoveries, we have a rough idea. The oldest known hominid was Sahelanthropus tchadensis, which lived about 7 million years ago.]]> 2020-11-30 00:29:21 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969578223 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969579463 2020-11-30 00:30:08 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969579463 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969579965 2020-11-30 00:30:26 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969579965 lnolasco https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969582041 2020-11-30 00:31:37 UTC https://padlet.com/lnolasco/q7o6q03a3e69qkng/wish/969582041