Meeting these burly giants on my cruise to the Arctic circle was awe-inspiring! Hundreds of them of them huddled together, grunting loudly & lazily as they slept along the shores of the craggy island. Suddenly, one Polar bear came upon the crest, then a few minutes later another. They galvinized their massive bulks and heaved themselves en mass into the frozen waters. Surrounding our boats, they shoved & grunted but did not threaten. We cautiously left their watery sanctuary.
Royal Society reveals best nature pictures of the year
Tadpoles overhead. Overall winner, Category winner: Ecology and Environmental Science. Tadpoles of many anuran species come in high numbers, but not many make it to adulthood. Here a group of common toad (Bufo bufo) tadpoles is seen from below by Bert Willaert, Belgium. It was shot with a canon G12 camera in a Recsea underwater housing and a Dyron dome port.