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Parental care is widespread across the animal kingdom and plays a critical role in offspring development. Yet, its broader genetic and evolutionary impacts remain underexplored. Here, using the bipare...

Abstract. Recent discoveries reveal that many complex intraspecific polymorphisms are shaped by a single supergene that maintains coadapted genetic variant

A symbiotic rove beetle develops a stealth phenotype by silencing production of its hydrocarbon pheromones, enabling it to infiltrate ant colonies, steal ant pheromones, and achieve social acceptance as a parasitic impostor. Evolution of this strategy is irreversible, locking the beetle’s lineage into obligate dependence on host ant societies.

The genome of the Atlas blue butterfly contains ten times more chromosomes than most butterflies, and more than any other known diploid animal. Wright et al. show that this extraordinary karyotype is ...