One of the two dolphin calves recently born at the National Aquarium has died. The mortality rate of dolphins born in captivity is pretty high (33%), and you might recall that the Aquarium lost another baby dolphin last year. That death figured into a story I wrote about the Aquarium last May, which you can read here. Hopefully, an autopsy will determine the cause of death, and Aquarium officials can get to the bottom of this.





