This is by Karen Weiss who says, “I was delighted to find your shaggy dog website and of course I can’t resist sending one of my own.”

A biologist specialised in amphibians. He was particularly interested in exploring the intelligence of these creatures and invented all sorts of tests to discover how well they could learn and remember. He found that a particular species of toad performed outstandingly in the tests and by a simple reward system with earthworms he … Read the rest...