«We'd anticipate far
fewer ecological consequences from gene - driving one of these naturally occurring proteins into a population of snails, because they'd remain natural in pretty much every other way — just instead of being more susceptible to Schistosoma, they'd be more resistant.»
Although the underlying causes are unclear, the onset of the PETM about 56 million years ago was rapid, occurring within a
few thousand years, and
ecological consequences were large, with widespread extinctions in both marine and terrestrial ecosystems.