Cell copies are not perfect--the chromosome isn't copied all the way to the tip. That's where telomeres come in handy.
Crocodiles are built for survival and that's how they swam the Atlantic.
Modern preventive medicine has saved millions of lives. You'll be surprised to hear that Neanderthals may have helped ancient humans prevent disease with genes.
Today, recombinant DNA is used to make insulin and the clotting factors hemophiliacs need. Who made this amazing discovery?
According to new genetic analysis, Southern Europeans, Middle Eastern groups and Jews share genes with African populations.
Scientists suspected that two populations, African savannah and African forest elephants, were separate species because of their size differences.
Turning white in response to chemicals, bomb sniffing plants may be a new form of defense.
Learn about how chemotherapy drugs work to fight cancer.
Scientific research is awesome when chocolate is involved! Learn what scientists are doing to understand the inner workings of the Theobroma cacao tree.
Forensic scientists are now using dogs' DNA to help stop dogfighting and abuse.