Research explains how snakes lost their limbs

Snakes and lizards are reptiles that belong to the order Squamata. They share several traits but differ in one obvious respect: Snakes do not have limbs. The two suborders diverged more than 100 million years ago. Identification ...

To repair DNA damage, plants need good contractors

When a building is damaged, a general contractor often oversees various subcontractors—framers, electricians, plumbers and drywall hangers—to ensure repairs are done in the correct order and on time.

Administering hormones affects DNA

In pigs, endocrine disruptors can alter gene expression in a way that also affects the next generation. This has been shown by a team of researchers from ETH Zurich and the Technical University of Munich. The study findings ...

Study: How life generates new forms

When organisms change during the course of evolution, often what drives new forms is not genes themselves, but gene regulation —what turns genes on and off. A new study identifies the kind of gene regulation most likely ...

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