Latest

The tail of each humpback whale is visibly unique.

Humpback whale subspecies discovered

Researchers from the British Antarctic Survey found that although female humpback whales have crossed from one hemisphere to another at certain times in the last few thousand years, they generally stay in their ocean of birth.

This isolation means they have been evolving semi-independently for a long time, so the humpbacks in the three global ocean basins should be classified as separate subspecies. This has implications for how we think about their conservation and recovery on a regional scale.

“Further genetic sequencing and analysis should also help us to understand more about the pattern of humpback migrations in the past. Big changes in the ocean can leave signatures in the genetic code of marine species. For example, the last glacial maximum caused many to shift southwards until the ice retreated or to find ice-free areas in the north.

Humpbacks are excellent oceanographers; they go where the food is and can travel long distances to get it, so their patterns of past migration can tell us a lot about the ocean thousands of years ago.”

Cognition in Sharks

A difficulty in obtaining information about wild animal behaviour is that detailed observations of different individuals is necessary over long periods of time, and this is especially hard to achieve with sharks. But in the shallow lagoons of French Polynesia, such observation was possible without the encumbrance of scuba gear, and without the problem of the shark disappearing into the depths.

Florida's Artificial Reefs

Oriskany, the aircraft carrier sunk off Pensacola

Miles of white sandy beaches, family vacation destinations, infamous spring break festivities and outstanding state parks attract millions of visitors to Florida annually from around the world. But there is so much more to see—especially for those who like to take their sightseeing down below the ocean and gulf waters—like the beauty and magic of thousands of artificial reefs that lie beneath the surface along Florida’s coastlines.

Antarctica: Polar Diving

On our journey north of the polar circle, my fellow adventurers and I were greeted by an astonishing spectacle. Over 20 orca were hunting an animal so rare that few people have seen them in the wild, let alone had the chance to study them. Using immense strength, agility and cunning intelligence, the orca worked as a team to hold the Arnoux’s beaked whale under water to drown it.

Fernando de Noronha

If I were to tell you about a special place where no one locks their doors at night, where crime is virtually nonexistent, where the number of tourists is intentionally restricted to preserve the ecological balance, and where each visitor must pay a daily fee of 15 Euros (approximately US$20) to protect the environment, would you think about Brazil? Probably not!