MarineBio Conservation SocietySea Life News   :: ScienceDaily

Bowhead whales come to Cumberland Sound in Nunavut to exfoliate

Wed, 22 Nov 2017 15:10:41 EST ~ Aerial drone footage of bowhead whales in Canada's Arctic has revealed that the large mammals molt and use rocks to rub off dead skin. Find out more...

Growing teeth and a backbone: Studies trace early origins of skeletal tissues

Wed, 22 Nov 2017 11:29:48 EST ~ Two new studies on the evolutionary origin of teeth and of vertebra further illuminate the human connection to marine organisms that goes back millions of years. Both studies were conducted in the little skate (Leucoraja erinacea). Find out more...

Common jellyfish is actually two species, scientists find

Wed, 22 Nov 2017 09:31:22 EST ~ Sea nettle jellyfish found in Rehoboth and Chesapeake Bay are actually two species, researchers have discovered. Find out more...

Species may appear deceptively resilient to climate change

Wed, 22 Nov 2017 09:30:39 EST ~ Natural habitats play a vital role in helping other plants and animals resist heat stresses ramping up with climate change -- at least until the species they depend on to form those habitats become imperiled. Find out more...

Underwater acoustic localization of marine mammals, vehicles

Tue, 21 Nov 2017 12:31:46 EST ~ An underwater acoustic system for the localization of marine mammals, underwater vehicles and other sound sources in the ocean, using no more than a single hydrophone (basically an underwater microphone) as a receiver. Find out more...

Effects of feeding populations of the green turtle in the Canary Islands: High consumption of fat, pollutants and behaviour changes

Tue, 21 Nov 2017 12:24:05 EST ~ Feeding the animals is altering the behavior and eating habits of the green turtle in the Canary Islands (Spain), concludes new research. Find out more...

Righty blue whales sometimes act like lefties, study finds

Mon, 20 Nov 2017 12:09:43 EST ~ To support their hulking bodies, blue whales use various acrobatic maneuvers to scoop up many individually tiny prey, filtering the water back out through massive baleen plates. In most cases, the whales roll to the right as they capture their prey, just as most people are right-handed. But, researchers now show that the whales shift directions and roll left when performing 360 barrel rolls in shallow water. Find out more...

Jellyfish: Stinging cells pack a powerful pressure

Mon, 20 Nov 2017 09:00:53 EST ~ The stinging cells of jellyfish, called nematocytes, have evolved to be one of the world's most efficient predation tools. The nematocysts consist of a capsule and folded tubule, and use high pressure and acceleration for defense and locomotion and, more importantly, to capture prey. Inconsistencies in a previous conceptual explanation of the stinging cell mechanism were identified using a microfluidic system and mathematical models. Find out more...

Plesiosaur flippers inspire a steering mechanism for swimming robotic vehicle

Mon, 20 Nov 2017 09:00:49 EST ~ Plesiosaurs, who thrived during the early to middle Jurassic Period, used four paddlelike flippers of nearly equal size and musculature to swim. Despite the seemingly subpar engineering, the fossil record reveals that plesiosaurs were widespread and prolific. This inspired a team to explore how swimming with four flippers might be advantageous compared to two. Find out more...

Recovery of West Coast marine mammals boosts consumption of chinook salmon

Mon, 20 Nov 2017 08:54:19 EST ~ The researchers estimate that from 1975 to 2015, the yearly biomass of chinook salmon consumed by pinnipeds (sea lions and harbor seals) and killer whales increased from 6,100 to 15,200 metric tons, and from five to 31.5 million individual salmon. Find out more...