Did Life On Earth Start as an RNA World?
To understand how life began, we must look far back in time. Back to a time when RNA, not DNA, might have been the building block of life.
Tag: evolution
Neoteny: Why Disney Princesses Look Like Babies
Neoteny, Evolution, and Disney Our friend Dr. Joe Hanson from It’s Okay to Be Smart (PBS Digital Studios) goes full…
Another Early Toothed Bird Raises Its Head
A team of paleontologists reveals new details about one of the most striking transformations in evolutionary history: a toothed bird.…
When There Were Squid Shells
Ancient squid had shells, but now they don’t. How did that happen and why? Find out in this video about squid shells, from PBS Eons.
Cooking, Evolution, and Brain Growth
Cooking establishes the difference between animals and people. In fact, we’re not the only social animals that sit down to…
Why Do Humans Have Thumbs and Not Fins?
Did you know we can trace the evolution of our hands, and thumbs, back to a 375 million-year-old fish called…
Vadasaurus Fossil Shows a Reptile in Transition
A small Vadasaurus fossil reveals how some land-dwelling reptiles moved back into the water. Find out more and meet its modern relatives.
Ongoing Human Evolution Revealed in Data
A research team at Columbia University has conducted a large-scale study of ongoing human evolution. Genetic data reveals how humans…
Microfossils Are Earliest Evidence Yet of Life on Earth
By Katherine Lindemann Researchers examining deposits from ancient hydrothermal vents in northeastern Canada have found evidence of microbial activity, possibly…
Which Dinosaur Gave Rise to Tyrannosaurus Rex?
What dinosaur was the ancestor of the mighty Tyrannosaurus rex? Which dinosaur gave rise to this famous lineage?