Scientists investigated the “abrupt frequency jumps” in monkey calls, reminiscent of the rapid transitions in frequency observed in human singing styles such as yodelling – or Tarzan’s famous yell.

Their study indicates that structures in the throats of apes and monkeys, called vocal membranes, allow monkeys to introduce voice breaks to their calls. These structures disappeared from humans ...

At Dangapara state primary school, located near Denguajhar tea garden, about 6km from Jalpaiguri town, classes have been replaced with chaos. The monkeys arrive before 10am and refuse to let teachers ...