They don't, they guess.
they learn behavioral patterns of the animals.
Fossils are the only way to learn which animals are extinct or have changed over time. We can look at animals that exist today and speculate concerning on the appearance of a common ancestor. We frequently have to change our opinion when we find a fossil.
Paleontologists specialize in the study of ancient extinct animals. They analyze fossils and other remains to learn about prehistoric life forms and their behaviors.
Their bone structure from fossils and their morphology
Scientists can learn about the evolution of different species, past environments, and the impact of geological events on life by studying fossils. Fossils provide valuable information about extinct plants and animals, their behavior, and their adaptations to changing conditions over time. Additionally, studying fossils can help scientists understand the patterns of extinction and diversification throughout Earth's history.
They learn about diseases Take a chimp for example scientists use chimps so that they can discover about diseases that can spread to humans.
The more scientists study animal behavior, the more they learn that animals were smarter than they thought. Now we know that even animals like octopus and alligators can use tools. Apes can learn sign language. Dolphins have names for themselves. That's just the beginning.
because their is so much more that we can learn from sea otters if they become extinct then how will we learn from them, they are living breathing animals be a good samaritan
Aside from fossils we can learn about organisms and how they have changed over the years by looking at the plants and animals we have today.
Scientists learn a few different things. Scientists learn new things very day.
Scientists can learn about extinct plants through fossils, pollen records, and ancient DNA analysis. Fossils provide direct physical evidence of past plant species, while pollen records give insights into the types of plants that existed based on the pollen grains preserved in sediments. Ancient DNA analysis can also reveal genetic information about extinct plants by extracting and sequencing DNA from preserved specimens, providing a deeper understanding of their evolutionary history.
They do not learn anything, they are extinct.