https://padlet.com/4961592889/rydne8i8oqvyvv19 en-us 2023-08-24 14:54:42 UTC 2023-08-29 02:56:45 UTC hello@padlet.com 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671715308 Earth formed 4.6 billion years ago, when gravity pulled swirling gas and dust in. This became the third planet from the sun. It has a central core of lava, rocky mantle, and a solid crust. ]]> 2023-08-24 15:04:07 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671715308 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671717027 The moon was formed from debris thrown into space due to a collision between earth and another smaller planet, around the size of Mars. ]]> 2023-08-24 15:05:43 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671717027 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671718382 The late heavy bombardment was a period of time when Earth was constantly getting pelted by asteroids, comets, and space debris. Despite the harsh conditions, scientists believe this was responsible for supplying earth with water.]]> 2023-08-24 15:06:58 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671718382 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671729992 The original life forms survived on carbon and did not require oxygen, due to the make up of earth's atmosphere. ]]> 2023-08-24 15:09:17 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671729992 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671739806 The solidifying of Earth occurred due to outgassing, in which water on earth's surface was expelled with lava. ]]> 2023-08-24 15:12:39 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671739806 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671744819 Cyanobacteria is a common relative of the chloroplast found in plant cells. These organisms evolved during The Great Oxidation.]]> 2023-08-24 15:13:19 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671744819 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671766358 The great oxidation caused an extinction in anaerobic organisms and a wide increase in aerobic organisms, such as the cyanobacteria. This happened due to an increase in O2 levels and decrease in carbon and nitrogen.]]> 2023-08-24 15:17:25 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671766358 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671767697 Eukaryotic organisms, such as plants and animals, can be traced back as far as 1.8 billion years ago. ]]> 2023-08-24 15:18:34 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671767697 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671769656 Snowball earth is a geological theory that earth's surface became mostly or completely frozen during the Cryogenian period. This event was potentially caused by a lowering in the greenhouse gases in earth's atmosphere. This led to a rise in more complex (large cell) organisms over simple (small cell), and set the stage for multicellular life.]]> 2023-08-24 15:19:15 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671769656 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671775719 Jellyfish were the first animals able to swim with muscles. At some point during their evolution, jellyfish transitioned from a stationary polyp to a swimming medusa. This involved major changes in the nervous system, muscles, and other parts. The jellyfish developed cnidocytes, which are stinging cells, to protect themselves. ]]> 2023-08-24 15:19:56 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671775719 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671782819 The Cambrian Explosion was the unparalleled emergence of organisms between 541 million and 530 million years ago. This event was characterized by the appearance of many of the major phyla that make up modern animal life.]]> 2023-08-24 15:20:45 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671782819 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671793875 2023-08-24 15:22:56 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671793875 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671795074 2023-08-24 15:24:04 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671795074 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671795812 Jawless fish arose from small bodied, filter-feeding organisms. Pre-historic ancestor of modern day fish, sharks, whales, eels, and other aquatic animals.]]> 2023-08-24 15:24:50 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671795812 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671796548 The first land plants arose from the water 440 mya. The first groups of plants to evolve on land were bryophytes and seedless vascular plants.]]> 2023-08-24 15:25:33 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671796548 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671797551 The first jawed fish were placoderms. They evolved from the previous jawless fish. Their jaws likely evolved from their gill arches. Their head and thorax were covered by armored plates and the rest of the body was scaled or naked. They lacked teeth.]]> 2023-08-24 15:26:29 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671797551 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671798354 Ferns are the main plant found in fossils from prehistoric times. They originated approximately 400 million years ago, and soon dominated the land. Ferns provided a food source to many herbivores, then and now. ]]> 2023-08-24 15:27:12 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671798354 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671799130 Amphibians are animals that can survive in water or on land. They evolved from fish, and developed to live in either habitat. This meant that many amphibians at this time had fish-like features. These animals were the first tetrapods, and are the ancestors of all four-legged animals today.]]> 2023-08-24 15:27:56 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671799130 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671799904 Around 380 mya, the Cladoselache evolved. This shark looks more similar to an eel. As active predators they had torpedo-shaped bodies, forked tails and dorsal fins. Although they are recognized as sharks, they very much could've been apart of the chimaera branch. ]]> 2023-08-24 15:28:39 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671799904 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671801072 Around this time, the first insects were formed. They looked like wingless silverfish, studies show. Later on, they started to gain more distinct characteristics to adapt to their environment.]]> 2023-08-24 15:29:48 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671801072 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671801967 Ferns and other plant life around this time started to cover the Earth in any places that would sustain them. This provided a lot of food for herbivores and other plant-eating creatures.]]> 2023-08-24 15:30:40 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671801967 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671802620 This is when bugs and insects started to evolve to get wings. Wings helped them travel faster and get away from predators. It could also help them camouflage, much like insects today.]]> 2023-08-24 15:31:18 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671802620 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671803048 The first known reptile has the genus name Hylonomus. It looked a lot like the present day lizard, but ranged from 8-12 inches. This species later evolved into many different types of reptiles over time.]]> 2023-08-24 15:31:47 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671803048 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671803526 The first conifers were said to have originated in Europe and North America 310 mya. Once they started to spread, they spread pretty quickly across large areas of land.]]> 2023-08-24 15:32:18 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671803526 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671805103 2023-08-24 15:33:55 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2671805103 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673067460 The Mesozoic Era, also called the "Age of Reptiles," is the period of time in which Pangaea began to break apart into continents. But, most importantly, this was the age of the dinosaurs. Dinosaurs started to rule the Earth and quickly climbed their way up to the top of the food chain.]]> 2023-08-25 15:04:43 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673067460 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673068405 The first earthworms are, in fact, older than the first mammals, studies show. They helped in making the soil more fertile for future plants to continue growing.]]> 2023-08-25 15:05:45 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673068405 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673078038 The earliest known fossil of a bird dates back 150 mya and scientists called this bird Archaeopteryx. In the Late Cretaceous Period, more birds with varying characteristics began to appear as the species started to evolve and change.]]> 2023-08-25 15:12:32 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673078038 2114600319 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673078374 The Morganocudon is known as the first mammal on Earth and suggested to have evolved from reptiles. Many have compared the first mammals to modern day rats or mice, which is likely where those animals evolved from.]]> 2023-08-25 15:12:54 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673078374 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673078896 Scientists have found one of the first flowering plants, named Archaefructus, and they suspect that it first grew around water. Flowering plants provided new food for insects as well.]]> 2023-08-25 15:13:26 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673078896 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673081453 At the end of the Cretaceous Period, most of the dinosaurs went extinct because of the Earth's collision with a large amount of meteors and celestial objects. This also caused widespread geological chaos, including massive volcanic eruptions. Not all of the dinosaurs went extinct because of these events, but quickly died years after from the lasting environmental impacts.]]> 2023-08-25 15:16:05 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673081453 2114600319 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673083450 The first known primate was named Purgatorius by scientists, and it was only detected and classified based on its jaw and teeth fragments. Squirrels are also known to have been derived from these early primates.]]> 2023-08-25 15:18:13 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673083450 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673083604 2023-08-25 15:18:24 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673083604 2114600319 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673084275 The "first horses" were actually the size of modern-day dogs and were suspected to have been roaming the forests of North America 55 million years ago.]]> 2023-08-25 15:19:11 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673084275 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673086992 The first apes were derived from the first primates approximately 33 million years ago. The majority of scientists believe that humans evolved from these apes because of our similar bone and brain structure.]]> 2023-08-25 15:20:05 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673086992 2114600319 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673087464 The first grasses on Earth were actually suspected to have been around since 70 million years ago. This gave a lot of herbivores another food source.]]> 2023-08-25 15:20:39 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673087464 2114600319 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673090307 This is the current world we are living in. Many species are still going extinct today, but some new ones are also being discovered thanks to new scientific technologies.]]> 2023-08-25 15:22:02 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673090307 4961592889 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673090856 The first Homo sapiens evolved from the first apes. They first learned a capacity for language around 50,000 years ago. They have since then evolved into modern-day humans like us.]]> 2023-08-25 15:22:47 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2673090856 2114600319 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2675965180 Some 440 million years ago, global sea levels rose and cooled off drastically, killing off 85% of all life on Earth. This also greatly impacted marine organisms living in shallow water as well. ]]> 2023-08-29 02:13:29 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2675965180 2114600319 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2675998972 With this extinction, many plants and animals suffered because of the major cooling of the oceans. This was because glaciers were forming and it messed up a lot of "floral" ecosystems at the time.]]> 2023-08-29 02:35:59 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2675998972 2114600319 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2676007795 Around 252 million years ago, the Earth experienced a great global and oceanic warming, killing about 90% of the species on the planet. This led to major amounts of volcanic activity, in turn, killing more organisms.]]> 2023-08-29 02:41:59 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2676007795 2114600319 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2676013205 The result of this extinction about 200 million years ago left 76% of marine and terrestrial life dead/extinct. An increase in atmospheric CO2 caused volcanic eruptions to occur, killing all of these organisms. ]]> 2023-08-29 02:45:33 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2676013205 2114600319 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2676018985 This extinction, 66 million years ago, marked the end of all dinosaur life on Earth. This extinction was caused by impact with multiple asteroids that killed 66% of the entire population on the planet.]]> 2023-08-29 02:49:19 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2676018985 2114600319 https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2676028097 This extinction, still currently happening today, is the extinction of plants and animals based on human activity. Things like hunting, poaching, tourism, and climate change have all contributed to this mass extinction.]]> 2023-08-29 02:55:24 UTC https://padlet.com/4961592889/rydne8i8oqvyvv19/wish/2676028097