A reader wrote to us recently about a worm, or what is believed to be a worm, with the follow characteristics: (1) The worm is big, about 20 cm long and as thick as a “man’s thumb”; (2) the worm has lots of spikes, or what look like spikes, on its back; (3) the back of this worm also has white dashes on it; (4) the worm has an orange line that runs down it side; (5) the worm was found in the reader’s grass in Port Elizabeth, South Africa.