Humpback whales (Megaptera novaeangliae) are intelligent, communicative, aerobatic, social, curious, playful and sometimes devious mammals that can grow to 16 meters in length, weigh 41tonnes (41,000 kg) and live over 50 years.
Oceanic has launched a multi purpose ultra light BCD that doesn't greedily gobble up divers luggage allowance.
The island of Grenada is affectionately known as the Spice Isle for its exotic spices of nutmeg, clove and cinnamon. Indeed, as we stepped off the plane, its warm, fragrant breezes welcomed us. Just a few hours earlier we were shivering in the drizzle and cold, wrapped in several layers of clothing dreaming of this exact moment.
When people ask me where my favorite dive spots in the entire world are, I have to stop and give it some serious thought. I like Fiji for soft corals, Chuuk for wrecks, Indonesia for critters, the Solomon Islands for an all-around trip and the U.S. west coast for kelp. But I usually reply that I like wherever I am going next, and that often includes right here in the Cayman Islands where I have the good fortune to live.
Sponges are dominant components of coral reef ecosystems, often exceeding reef-building corals in abundance. Large sponges, often more than 1 m in diameter, may be hundreds to thousands of years old. When damaged or dislodged, large sponges usually die because they are unable to reattach to the reef substratum.
20 specimens of the Caribbean giant barrel sponge were removed and reattached at Conch Reef off of Key Largo, Florida in 2004 and 2005 at depths of 15m and 30m.
Sharks are known to "dive" frequently through the water column and many functions have been attributed to the behaviour, such as thermoregulation, search and reduction of the COT. Few studies, however, have been able to frame these in conjunction with theoretical optima and test predictions for differing movement structures.
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Walter Elcock, now 89 and living in Georgia, recalls the landing and how he managed to snag a wire on the carrier with the plane's tailhook and hung from it a few seconds before the wire broke.
"I went straight underwater," Elcock recalled. He unbuckled and kicked for the surface, maybe 10 feet away, thinking that he wouldn't be able to stay afloat wearing all of his heavy flight gear. Fortunately almost immediately, a Coast Guard ship pulled him out.
"I grew up hearing the story of this crash," said Elcock's grandson, Hunter Brawley, 36, of Atlanta, Georgia.
The Inia geoffrensis, more commonly known as the pink dolphin, is nicknamed locally as ‘Boto’ and resides in the waters of the Rio Negro. Although still poorly known, this species is considered the most intelligent of the five species of freshwater dolphins.
Giant basking sharks like to take tropical vacations too.
Previously thought to inhabit only temperate waters, a new study, just published in Current Biology, shows that the giant sharks make long, make vast migrations to deep, warm-water hideouts. Before the annual winter disappearance, scientists tagged 25 basking sharks off New England with floating, timed-release satellite transmitters, which showed that, like humans, the giant basking sharks like to take tropical vacations too.
(Stanford University, Dalhousie University and the Monterey Bay Aquarium, working in collaboration with Canadian fishermen from Prince Edward Island and Nova Scotia.)
The field team was led by Drs. Mike Stokesbury of Dalhousie University and Steve Wilson of Stanford University.
