In Yellowstone National Park, winters are getting shorter and there is less food for scavengers. That’s bad news for scavengers like bears, but could wolves help?

Explore the Cell Viewer Game

Cells are the basic building blocks of life, but what all do cells hold? You can now look inside of cells to learn more about their parts in our Cell Viewer.

To learn more about cells and cell parts, visit Building Blocks of Life for more of the story.

Also in: Suomi

Scientists thought that flying reptiles known as Pterosaurs were slowly dying off before an asteroid caused a huge die-off on Earth. But new fossils found in Africa tell a different story.

Coronaviruses can cause the common cold, or worse infections, like COVID-19. Brenda Hogue studies how these viruses replicate and infect, and uses this information to try to make vaccines and other medicines.