little brown bat
... that the pup of a little brown bat can weigh nearly a third as much as its mother at birth?
... that the pup of a <b id="mwAuY"><a href="./Little_brown_bat" id="mwAuc" rel="mw:WikiLink" title="Little brown bat">little brown bat</a></b> can weigh nearly a third as much as its mother at birth?