Marine Mammals - Woods Hole Oceanographic Institution
2024年4月11日 · The WHOI Marine Mammal Center (MMC), fosters research on whales, dolphins, and seals, including their behavior, health, anatomy, and perception; methods to free entangled whales and the causes of strandings; and marine mammal populations' link to ocean conditions and plankton abundance. A particular focus is the endangered north Atlantic right ...
Seal Facts - Woods Hole Oceanographic Institution
2024年4月11日 · Gray seals are gregarious animals—they gather in large groups on shore to breed, give birth, and molt. Female gray seals live up to 35 years and males about 25 years. Gray seals primarily hunt squid, fish, and sandeels; their main predators are humans, sharks, and orcas. Gray seal pups are born in autumn (September to November) in the eastern ...
Sea Life Is Accumulating Pathogens - Woods Hole Oceanographic …
2008年8月21日 · Sea Life Is Accumulating Pathogens. An unprecedented survey of seabirds, marine mammals, and sharks on the U.S. East Coast has revealed that marine wildlife contains a wide variety of disease-causing microbes—including many that have developed resistance to antibiotics and several that can be transmitted to humans.
Sea Otters and a Sense of Smell
September 1, 2004. Contrary to popular belief that marine mammals have a poor sense of smell, sea otters may have a nose that can actually help them distinguish between contaminated and safe abalone and clams, some of their favorite foods. Woods Hole Oceanographic Institution (WHOI) researchers are studying olfaction – the ability to smell ...
How Do Marine Mammals Avoid the Bends?
April 25, 2018. Deep-diving whales and other marine mammals can get the bends—the same painful and potentially life-threatening decompression sickness that strikes scuba divers who surface too quickly. A new study offers a hypothesis of how marine mammals generally avoid getting the bends and how they can succumb under stressful conditions.
Five Marine Living Fossils You Should Know - Woods Hole …
2021年10月7日 · Both shelter in underwater limestone caves by day and venture out at night to hunt for fish and squid. They are more closely related to tetrapods (amphibians, reptiles, and mammals) than to ray-finned fishes and cartilaginous fishes. A striking feature is the paired fins that extend away from the body and move in an alternating pattern like legs.
Shark Facts - Woods Hole Oceanographic Institution
Individuals grow to an average of 15 feet (4.6 meters) in length, though specimens exceeding 20 feet (6 meters) and weighing up to 5,000 pounds (2,268 kilograms) have been recorded. No one has ever reliably observed white sharks mating. Like many sharks, white sharks are born live and can swim immediately. An individual white shark might lose ...
Jellyfish & Other Zooplankton - Woods Hole Oceanographic …
2020年7月14日 · Jellyfish are a type of zooplankton that both drift in the ocean and have some swimming ability. Hundreds of jellyfish species live in every part of the ocean and belong to the same animal group as corals and sea anemones. Soft-bodied, fragile, and often transparent, jellyfish often look like umbrellas or bells with tentacles around the edge or ...
How marine mammal ears are different from ours
But the differences don't end there. Marine mammals also need a streamlined head for fast and easy movement through water that external ears would impede. Instead, they have ear holes located right behind the eye. In bottlenosed dolphins, the ear hole is only 2-3 millimeters in diameter. Some scientists believe that the toothed whales have ear ...
Marine Mammals' Greatest Hits - Woods Hole Oceanographic …
But there are over a hundred species of marine mammals, and as you will see from the following playlist, each has its own unique sound: Two different Inia geoffrensis (~320K) Delphinus bairdi (a.k.a. common or saddleback dolphin) (~280K) Twenty Delphinus delphis (a.k.a. common or saddleback dolphin) (~260K) About 200 Stenella styx (~390K) Two ...