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In this activity, students use an interactive tool to simulate how scientists collected and used sample data to estimate elephant population sizes.

Britain’s fertility regulator on Wednesday confirmed the births of the U.K.'s first babies created using an experimental technique combining DNA from three people, an effort to prevent the children from inheriting rare genetic diseases.

In this Click & Learn, students explore the process of digestion and how it connects to metabolism and cellular respiration. 

Scientists are using human stem cells to create a structure that mimics a pre-embryo and can serve as a research alternative to a real one.

This interactive module introduces the anatomy of the immune system and walks through the timeline of a typical immune response.

This web tool provides a quick and easy way of visualizing and analyzing data without advanced technological requirements.

Scientists have discovered the ultimate case of regeneration: Some decapitated sea slugs can regrow hearts and whole new bodies.

Identical twins are not exactly genetically the same, new research shows.

For centuries, scientists have obsessed over a primordial blob that can shape-shift, clone itself, and live indefinitely.

For the first time, a blood test has been shown to help detect many types of cancer in a study of thousands of people with no history or symptoms of the disease.

This interactive module allows students to collect and analyze data from a virtual river to construct biomass and energy pyramids.

Cancer patients often wonder “why me?” Does their tumor run in the family? Did they try hard enough to avoid risks like smoking, too much sun or a bad diet? New research suggests random chance may play a bigger role than people realize.