The first clue sits in a museum drawer, not on a windswept Arctic shore. It is a whale bone, marked and shaped by human hands ...

These three countries alone are suspected of killing nearly 45,000 whales since 1986, when commercial whaling was banned.

This is the first time drone-based tagging has been employed for tracking the movements of pygmy blue whales.

Out of season, the chances of seeing wildlife might be lower but, the encounters can be even more incredible, as these wildlife lovers learned when they came face to face with orcas.