
Image: Gabriel Barathieu
When American and British whaling ships hunted for sperm whales in the North Pacific in the early 1800s, they noted something disturbing. After initially good results, the whalers’ success in harpooning the whales fell by about 58% over the first few years of whaling. Now, a study led by Hal Whitehead, a whale biologist at Dalhousie University in Nova Scotia, may have found the answer as to why this happened. Using data from digitized whaleship logbooks, his team determined that the most likely explanation is that the sperm whales learned how to avoid the whalers and taught other groups of whales how to do the same.