The garden-variety slugs and snails we didn’t know were venomous
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Scientists are proposing a new, broader definition of venom, moving beyond the traditional understanding of bites from snakes and spiders.
A paper published in journal Trends in Ecology & Evolution, and led by the Natural History Museum’s venom expert Dr Ronald Jenner, redefines venom as any internally delivered secretion used by one organism to physiologically manipulate another against its interests.
This new definition classifies tens of thousands of additional species as venomous, including common garden snails, slugs, aphids, and various insects.
Examples include insects injecting toxins into plants to disable defences, mosquitoes suppressing immune systems for blood meals, and slugs and snails injecting toxins into potential partners during sexual courtship.
Researchers hope this redefinition will foster interdisciplinary collaboration and enhance the understanding of venom biology as a widespread evolutionary strategy.