3、I really enjoy the ingenuity of scientists testing optimism and pessimism in starlings, episodic memory in scrub jays and meadow voles, joy in rats.
2、So why do meadow voles not get addicted to each other?
4、One study has already shown that it is possible to inject a viral vector for the vasopressin receptor into the brains of the fickle meadow voles and make them better partners and parents.
1、By altering the small animal's brain hormone chemistry, scientists have made a promiscuous meadow vole faithful - just like its prairie vole cousin.
