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Welcome to Ask A Biologist. This site has a large collection of biology learning materials that includes stories, games, activities, videos, and a podcast.
Doctors place Intrauterine Devices (IUD) in the bodies of some females to help prevent pregnancy. Learn about how these devices work and how long they’ve been around.
What is cloning and do we have clones living among us today? The answers might surprise you or maybe we should say ewe.
All living beings are made up of cells. Some of them are made up of only one cell and others have many cells. Also in: Español | Français | Deutsch…
While cannibalism is fairly common among insects and crustaceans, most backboned animals avoid feeding on their own kind.
This animal lives in almost every part of the world and kills hundreds of thousands of people each year. What might surprise you is that you certainly have had a close encounter with the world’s most dangerous creature. Dr. Biology catches up with evolutionary biologist …
An interview with biologist Kevin McGraw. Dr. Biology and his co-host Brian Varela learn a lot about feathers and all the ways birds used them. This is a colorful and wild show that you will not want to miss.
Dr. Biology interviews research scientist Kate Ihle at Barro Colorado Island in Panama. BCI is part of the Smithsonian Tropical Research Institute.
Giant beetles, flying treadmills, oxygen and prehistoric insects are just a few of the things that Dr. Biology learns about when visiting with biologist Jon Harrison.
Two Headed Snake
Read The Tale of the Two-Headed Lampropeltis getula californiae and then take this quiz to test your knowledge!
Cracking CRISPR
DNA is the key to life, so it's no wonder that we've been working to crack the code. With the tool CRISPR Cas9, we've…
Ant Gallery (Get up-close to ants)
Now is the time to check out these amazing animals from the safety of your own computer.
Bone Zoom Gallery (Up-close Inside Bones)
Take a look at the microscopic world of bone in our virtual bone histology lab. Just pick a microscope slide from below and click on it to view under the virtual microscope.
Pollen Gallery (Pollen up-close)
Pollen comes in many shapes and sizes. These are just a few of the thousands of examples.
Face to Face with Ants
Imagine being the size of an ant. Be careful - a face-to-face encounter with an ant would be scary and potentially life-threatening! But, if you avoided being eaten, you could learn a lot about…
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Metamorphosis – Nature’s Ultimate Transformer
Transforming robots are favorites of television and movies, but nature has some of the best transformers. Animals that can change in ways that almost seem unbelievable. Also in:…
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Making Life Crystal Clear
Much like a mechanical watch, living things only work when all the gears work together. Some of the tiniest of gears are proteins. Learning about the shape and size of these proteins is the job…
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Solving a Genetic Mystery
The life and work of Gregor Mendel has some surprising pieces. Known as the father of genetics, his work was mostly unnoticed for 30 years after he published his famous paper. It is also…
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