Terrestrial ecosystems in equatorial regions rebounded rapidly after the end-Permian mass extinction, with plants and animals adapting to extreme heat by burrowing and occupying riverine habitats within just two million years.
Using modified rabies virus tracing, researchers show that even a single exposure to addictive drugs can induce long-lasting, cell-type-specific changes in inputs to dopamine neurons.
Fever-level temperatures (39 °C) increase the stickiness of red blood cells infected with malaria-causing parasites through elevated surface PfEMP1, potentially worsening disease by promoting blood-vessel blockage.
Humans flexibly represent time by combining stable, hippocampal event sequences with perspective-dependent, parietal representations that adapt to current task demands.
Bird species in tropical mountains appear to adapt to high-elevation conditions by modifying eggshell structure to reduce water loss during embryonic development.
Two major crop pests produce different salivary proteins that disable the plant immune sensor RLP4, weakening plant defenses and revealing a shared strategy insects use to promote feeding.
