A crocodile flips over on the river’s surface right in front of the canoe, then disappears into the white water frothing through the narrow channel. It’s too late to stop, but fortunately the croc (Crocodylus niloticus) is just as alarmed by the intruders as they are by it, and the canoe passes quickly over the … Continue reading ‘Croc on a rock’: How a group of explorers suffers for science