Female gametes prefer sperm with different immune genes

Through clever partner selection, animals can increase the future success of their offspring. With some species, this process continues even after the sex act. Researchers at the Max Planck Institute for Evolutionary Biology ...

Mixed signals from poisonous moths

Poisonous moths use bright red spots to warn predators to avoid them—but natural variation in these wing markings doesn't provide clear indications of how toxic individual moths might be—new research shows.

Climate change forced zombie ant fungi to adapt

Zombie ants clamp on to aerial vegetation and hang for months spewing the spores of their parasitic fungi, but researchers noticed that they do not always clamp on to the same part of the plant. Now the researchers know that ...

Hybrid chickadees found deficient at learning and memory

For a long time, hybridization—when distinct species mate and produce offspring—was thought to be a mistake. Yet, advancements in genomic testing tools have revealed naturally occurring hybridization as a fairly common ...

X chromosome not the reason for sex differences in lifespan

The shorter average lifespan of males compared to females appears not to be a result of the fact that males have only one X chromosome. This is the conclusion from a research study on fruit flies at Linköping University, ...

The resilience of ray-finned fishes

Scientists from the University of Bristol have revealed that ray-finned fishes are perhaps one of Earth's most resilient groups of animals, having survived four mass extinction events that wiped out many other groups.

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