COMMON GENE SHUFFLING. “Bdelloid rotifers – tiny translucent animals that look something like sea slugs – have constructed a whopping eight per cent of their genome using genes from bacteria, fungi and plants. Fish living in icy seawater have traded genes coding for antifreeze proteins. Gargantuan-blossomed rafflesia have exchanged genes with the plants they parasitise.”
https://aeon.co/essays/genes-that-jump-species-does-this-shake-the-tree-of-life