How do scientists know about organisms that lived so long ago? What evidence have scientists gathered to help explain how species formed and changed over time? by Erick Medrano

2025-04-16 22:50:30 UTC

Scientists know about organisms that lived long ago by finding their fossils. Scientists search rocks to look for fossils that represent old animals that used to live long ago. They test the fossils to see what it can match to. Doing this could help them get an image of how they used to look back then. This helps them gather info on how the old species used to be. They can also look at the bones and see how they were back then. It also shows the shifts in the bones after a long period of time.

Evidence of Evolution (Connor Chan)

2025-04-16 22:50:55 UTC

Over time scientists have dug up and discovered bones of many different extinct animals which allows them to collect DNA and things that are found in those animals bones. Scientists dig down and normally the further they go the older the species would be, with this knowledge scientists found the semi newer bones near the top and after digging deeper they found the older bones of the same or similar species which helps them know how the animal evolved and changed over time.

2025-04-16 22:51:03 UTC

Scientists know about animals that lived long ago because of finding fossils. They look through sedimentary rock to try and look for fossils. When they find the fossils it can help them to try and figure out what kind of animal that was. They can also dig to look for types of bones that extinct animals used to have. For example, Paleontologists dig to look for dinosaur bones and that proves that dinosaurs were real and alive a long long time ago.

Evidence of evolution

2641700251 — 2025-04-16 22:52:59 UTC

Scientists know about organisms that lived so long ago is that because they look through the fossil record. The evidence that the scientists gathered to help explain how species form and change over time is that the fossil record direct observation of evolutionary changes, and comparative studies of anatomy and genetics.

Aiden P. How do scientists know about organisms that lived so long ago? What evidence have scientists gathered to help explain how species formed and changed over time?

2642100651 — 2025-04-16 22:53:12 UTC

Scientists know about organisms that lived long ago because of the remnants that they left behind. Some evidence that scientists have gathered are the fossils of horses. 6- 12 million years ago we know that horses used to be shorter. We also know that 55-45 million years ago horses were even shorter, and they had 4 toes. As the time increased the horses grew taller and got less toes. As more and more time passes by the horses may even grow taller.

Explanation of Revolution

2025-04-16 22:54:43 UTC

Scientists today from all over the world have explored and discovered so many amazing things about our environment. One of the main things discovered is how species form and change through time. Through research and exploration, fossils have been discovered through different layers in land. Every layer represents the different age and time that the species existed in. The scientists use this information to help them determine the age and status of different species. They look at the condition of the species and where it was found. This helps them form an idea of characteristics, traits, abilities, looks, etc. of what they found. They use this research to help illustrate and determine the changes of species and how they were formed over time.

Scientists study ancient organisms by using geological evidence to piece together the history of life on Earth. Fossils provide exact evidence of past life forms, while geology helps find out the age of the rocks and where organisms lived. Molecular biology compares the DNA of living organisms to infer evolutionary relationships and timelines. To determine how the species changed over time was by using fossil records. Also scientists used Embryology to find out about the fossils.

2025-04-16 22:54:48 UTC

2672000451 — 2025-04-16 22:56:18 UTC

Scientists know about organisms that lived long ago by finding their fossils and Scientists study organisms that lived long ago using a variety of methods, including the analysis of fossils, genetic research, and comparative anatomy.

2601700031 — 2025-04-16 22:57:25 UTC

Scientists knew about organisms that lived so long ago, by using their fossil records that they already have, which provides the scientists with evidence about life in the past. Scientists search rocks to look for fossils that appear to be animals that used to be here long ago. Scientists also collect the DNA of the animal fossils they dug up, which can help them figure out their diet, habits, predators, intubations, nests, their behavior, etc.

2601700172 — 2025-04-16 22:58:22 UTC

I think scientists know about the organisms because they studied and tested old fossils from many years ago, and they would analyze their structure, composition,and their geological context.

evidence of evolution

2831800554 — 2025-04-16 22:58:27 UTC

The scientists can infer how long or what species they're due to machinery and modern technology. If they collect enough different fossils so they can infer what order they are. With technology, they can also tell how long ago the penguins are, like Pedro the Penguin, many remains put into the reader that reads the DNA. The fossils can be used to find how a future one can look like it could grow like a horse or shrink like a penguin. other things they might use is comparative anatomy

Horse evolution

2025-04-16 22:58:35 UTC

How do scientists know about organisms that lived so long ago? Paleontologists have recovered and studied the fossil remains of many thousands of organisms that lived in the past. What evidence have scientists gathered to help explain how species formed and changed over time?This fossil record shows that many kinds of extinct organisms were very different in form from any now living. Evidence for large-scale evolution macroelution comes from anatomy and embryology, molecular biology, bio geography, and fossils. Similar anatomy found in different species may be homologous shared due to ancestry or analogous shared due to similar selective pressures.

2592100608 — 2025-04-16 23:01:40 UTC

Scientists know about organisms that lived long ago because they determine the animal primarily through the analysis of fossils that have been stuck in the different layers of sedimentary rock for years. They also can tell too because some of the animals in the past have the same DNA as the animals that are alive today but have evolved more over the years. Another way they can tell is how there are preserved animals stuck in the ice in Antarctica, for example Pedro the Penguin.

Evidence of evolution.

2025-04-16 23:02:08 UTC

There is much evidence of evolution that scientists have and its most likely that there are many more to discover. Mostly through found fossils. Such as Pedro, the penguin. They had collected many different fossils of penguins, showing how their bodies evolved to match the environment as their own environment changes as well. - Naro B.

Evidence of Evolution -Katie Matsubara

2025-04-16 23:03:51 UTC

Scientists have knowledge of organisms that lived a long time ago, because when animals die. They leave behind a skeleton which is then turned into a fossil as it is preserved in the ground. After a while these fossils are then discovered and they are observed for every single detail. As the bones and leftover preserved animal parts such as feathers are examined it can give us a lot of the data on the animal. Such as what species it is related to, its diet, habitat, and etc.

Evidence of Evolution

2851700123 — 2025-04-16 23:05:05 UTC

You know that scientists have gathered some information on animals that lived a long time ago by finding fossils and these scientists study the organisms, They used methods like analysis of fossils. By digging up the fossils scientists can analyze the similarities and differences and the relation to animals that are alive.

Evidence of Evolution

2881700196 — 2025-04-16 23:08:13 UTC

You may know that scientists have gathered a vast amount of information on animals that are alive today. But have you ever wondered how they know about organisms that lived before we were even born? Scientists are able to figure this out using evidence through studying fossils, limb structure, and embryos. By digging up different fossils, scientists are able to make new discoveries through the comparison of their bones to the animals today. The depth of where they found the fossils also allows them to determine what time period these animals were alive. Additionally, through the analysis of animal limbs and embryos, scientists are able to find the correlation of their genealogy.

Evidence of Evolution - Murii

2025-04-18 02:01:44 UTC

Scientists know about organisms that lived so long ago through the studies of their fossils. Scientists discover animals with different body parts in the fields which gives them a better understanding of their discovery through the fossils of body parts . Fossils provide evidence of species that are now extinct, illustrating that various organisms have inhabited Earth at different times throughout its history. Additionally, they assist scientists in piecing together the evolutionary ancestry of contemporary species.