Ilha Grande, Brazil
A horrendous racket, sounding like some sort prehistoric monster was coming from the trees. I realized after a while that it must be one of the appropriately named howler monkeys, and sure enough there it was sitting in the trees to one side of the path. Five minutes later I said to Helen that it would be really nice if we also saw some of the tiny marmoset monkeys that live on the island. And right on cue, a group of about 20 of them started leaping through the ...