More than 157 howler monkeys have perished in state of Tabasco due to heat wave
                                
                                
                                    (Newser) -
                                    The number of heat-related howler monkey deaths in Mexico has risen to 157, the government said, with a tragically small number of the primates treated or recovering, the  AP  reports. Meanwhile, an animal park in northern Mexico confirmed it has received reports that at least a hundred parrots, bats and...