Cancer vaccines showed promise in two small new studies.

In honor of the birth of American independence, here are U.S. presidents who have been immortalized in "life's filing system."

Whether they're swooping in to deliver packages or spotting victims in disaster zones, swarms of flying robots could have a range of important applications in the future.

The gene-editing tool CRISPR is fast becoming known for its potential to treat disease, but it also has other possible capabilities, such as the ability to screen people for viruses.

Scientists in England have uncovered a possible link between an antibacterial ingredient and antibiotic resistance.

The road to bringing back the mammoth — a giant that went extinct at the end of the last ice age — is filled with barriers.

Western toad sex involves quiet searches, mating balls and streams of eggs.

Some crafty celestial sleuthing has helped astronomers identify the "star" that inspired Lord Byron's famous poem "Childe Harold's Pilgrimage."

Taking a popular type of heartburn drug may increase a person's risk of death, a new study finds.

Energy from the sun's rays can cause skin damage and cancers. Sunscreens can absorb or reflect the dangerous UV light. Here's everything you need to know to read the labels in the sunscreen aisle.

Re-growing lost organs or body parts is beyond the scope of human biology. But in recent years, scientists have successfully cultivated a range of miniature organs and human body parts in laboratories.

Each firework is packed with just the right mix of chemicals to create their colorful lights.

The massive extinction that wiped out the dinosaurs paved the way for frogs to explode in diversity, new research suggests.

A woman who ate her placenta in encapsulated form retransmitted a potentially deadly infection to her baby, a new case report reveals.

TV host Maria Menounos had surgery to remove a brain tumor last month, according to People magazine.