About 66 million years ago, a terrible extinction event wiped out the dinosaurs. But it wasn't the only event of this kind -- extinctions of various severity have occurred throughout the Earth's history -- and are still happening all...

Threatened, Endangered, and Extinct describes the differences between threatened, endangered, and extinct organisms.

When a plant or animal species that once lived stops existing entirely, we say that that species has become extinct. Why do certain species of plants and animals sometimes become extinct? According to the theory of evolution, individuals...

There's an organism that changed the world. It caused the first mass extinction in Earth's history and also paved the way for complex life. How? Anusuya Willis explains how cyanobacteria, simple organisms that don't even have nuclei or...

De-extinction, or resurrection biology, or species revivalism is the process of creating an organism, which is either a member of, or resembles an extinct species, or breeding population of such organisms. Cloning is the most widely...

This video looks at why fossils are so useful in telling us about extinct species, and also explains why some species go extinct in the first place.

Almost as rare as the plants he protects, 24-year-old Josh Styles is not your average botanist. In 2017 he founded the North West Rare Plant Initiative, a conservation project in his local region. His aim is to resurrect 44 plant species...

Delve into the critical issues of endangered and extinct species, understanding the causes and the urgent conservation efforts needed.<b<br/>r/>

Biology Terms part 3

Natural history is full of living things that were long thought to have gone extinct only to show up again, alive and well. Paleontologists have a word for these kinds of organisms: They call them Lazarus taxa.

Natural history is full of living things that were long thought to have gone extinct only to show up again, alive and well. Paleontologists have a word for these kinds of organisms: They call them Lazarus taxa.

This video explains the use of fossils as evidence for the theory of evolution by natural selection. It describes the three main ways in which fossils can be formed, and how they provide evidence of organisms that lived millions of years...

Viruses are wildly successful organisms. There are about 100 million times as many virus particles on Earth as there are stars in the observable universe. Even so, viruses can and do go extinct. So, what is the possibility of the virus...

In this video Paul Andersen explains how ecosystems respond to disruptions. Disruptions can cause changes in the number and variety of organisms. It can also lead to migration, extinction or even speciation. Ecosystems that have a...

The California condor is the biggest flying bird in North America, a title that it has held since the Late Pleistocene Epoch. It's just one example of an organism that we share the planet with today that seems lost in time, out of place...

In this video, students will learn about important terms in biology, including the definitions of living and non-living, life cycles, endangered species, and extinct species. The video breaks down these concepts and provides examples to...

This video explains what evolutionary trees are and how they show the relationships and evolution of organisms or species. It discusses the general structure of an evolutionary tree, with organisms or species at the ends of branches...

Examples of physical and behavioural adaptations which allow plants and animals to survive in some of the most challenging habitats on Earth. Biology - Adaptation And Evolution - Learning Points. Animals and plants survive in diverse...

With an understanding of individual organisms, let's take a look at population ecology, which looks at the dynamics of populations of organisms. How do populations grow? How are they structured? What is their geography? There is a lot to...

Explore the fascinating world of Neanderthals, our closest extinct human relatives, and debunk common misconceptions surrounding their intelligence and behavior. Learn about the origins of the Neanderthal species, their coexistence...

Fossil fuels are made from the remains of extinct organisms that have been exposed to millions of years of heat and pressure. But in the case of coal, these organisms consisted largely of some downright bizarre plants that once covered...

It's Earth Science time!!!! In this field, natural philosophers were asking questions like, what’s up with fossils? Are they the remains of extinct organisms? Or are they so-called “sports of nature”—rocks that just happen to look like...

Scientists were able to get molecular information from 1.7 million years old teeth using a new method that could completely change how we study extinct organisms.

When a plant or animal species that once lived stops existing entirely, we say that that species has become extinct. Why do certain species of plants and animals sometimes become extinct? According to the theory of evolution, individuals...

Six tales of extinctions, and what collections can tell us about life on our planet. Six researchers share 60-second stories about organisms that may be gone, but not forgotten. #extinction #AMNH #ShelfLife #massextinction For more about...