AN ANT QUEEN MASS PRODUCES CLONED SONS OF ANOTHER SPECIES

Summary from the TLDR newsletter

An ant queen from the species Messor ibericus was observed producing cloned males of another species, Messor structor. The two species split about 5 million years ago. When the Messor ibericus queen makes daughters, she mixes her DNA with sperm to create hybrids, but when she makes sons, she erases her own DNA entirely, resulting in males that are exact clones. The queen had stored the sperm of the other species in her reproductive tract, resulting in sons with the other species' genome.