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Learning new navigation or memory skills changes brain network dynamics without altering brain structure.

The regulatory elements controlling the genes involved in the development of craniofacial features in marsupials are highly active, reflecting their need for traits critical for immediate survival in the pouch.

Mouse sperm can locate and enter the fish micropyle, the passage leading to the egg.

A computer model suggests that genetic information in cancer cells can reveal the strength of interactions between cancer and immune cells.

Premature vision causes an aberrant development of neuronal circuits in the primary visual cortex of ferrets.

Gall-forming plant pathogens produce high numbers of organism-specific effector proteins that help infiltrate the plant’s immune defenses.

C. elegans uses a protein located in specific neurons to detect toxic food and shut down the digestive system.

Instead of having an overactive fear system, people with anxiety disorders may suffer from an inability to flexibly reduce the influence of fear as a situation becomes more predictable.