Friday, March 27, 2009
Sunday, March 22, 2009
Saturday, March 21, 2009
The enigmatic Spotted Hyena - an experiment in developmental biology
This hyena was hanging around under the tree where the leopard had stashed his impala for safe keeping. Maybe the hyena will get lucky, should the impala fall?
A remarkable feature of Spotted Hyenas (but not Striped or Brown Hyenas; the Spotted Hyena is the only mammal known to sport such an anomaly!) is the elongated clitoris of females, roughly the size of the male's penis, through which she urinates, mates and gives birth! Check it out at http://en.wikipedia.org/wiki/Spotted_hyena
According to Stephen Glickman, an integrative biologist at UC Berkeley, birth of a 3-pound hyena cub is a cringe-inducing process - imagine pushing a golf ball through a soda straw - makes the downside of the female hyena's strange anatomy abundantly clear (Greg Miller, Science, 319: pp. 722-723, February 8, 2008). Hyena moms typically have two cubs in a litter, and about 60% of cubs born to a first time mom are stillborn. Amazing!
Saturday, March 7, 2009
Monday, March 2, 2009
On the trail of a leopard with an impala stash in a tree
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