> Twins occur in only one percent of elephant births and male-female are even more rare, according to Save the Elephants, a research organisation. 1% is "rare"

> Twins occur in only one percent of elephant births and male-female are even more rare, according to Save the Elephants, a research organisation. 1% is "rare", I guess, but I'm not sure exactly why it's newsworthy. About 3% of human births are twins, so twin elephant births aren't much rarer.