Blue and fin whales are interbreeding

A round-up of the strangest science stories from around the world.

From top-dog wolves and wise elder elephants to insect royalty and sex-changing fish, animal alphas take many fascinating forms

Fee-fi-fo-fum! it may not make a great deal of grammatical sense, but this phrase is certain to conjure up mental images of magic beans, rampant beanstalks and one very angry giant. Colossal-sized hum

DE-EXTINCTION EXPERT

Good Housekeeping ’s special projects director, Emma Justice , ticks wildlife, helicopters and huskies off her bucket list on an Alaskan cruise

It’s a part of Iceland that’s off the tourist trail, but it’s brilliant for birding, writes Vanessa Wright