Category: gray whale

cetuselena:

cetuselena:

Tshirt design for a class project.

seatrench: Gray Whales have an unusual feedin…

seatrench:

Gray Whales have an unusual feeding habit among cetaceans.  They feed by rolling onto their sides and taking a large mouthful of sediment from the seafloor,  and straining small crustaceans,  amphipods,  worms,  and other animals out using their baleen plates.  After a Gray Whale has chosen a side to roll to during feeding (usually the right side),  they will stick with this choice for life,  and older whales are often blind in the eye on their chosen side due to damage from mud and sand.

(source)

csnews: Rise in Tailless Whale Sightings Ha…

csnews:

Rise in Tailless Whale Sightings Has Scientists Concerned

Katarina Zimmer – May 7, 2018

Alisa Schulman-Janiger was observing gray whales off Mexico in 1985 when, instead of a majestic fluke rising from the water, she saw an ugly stump. It was a whale without a tail. “My jaw literally dropped,” she recalls. Since then, there have been occasional sightings of tailless whales in western North America. But so far this year, at least three flukeless gray whales have been spotted migrating northward along California’s coast—a spike that has Schulman-Janiger concerned for their well-being.

There are no signs these animals have suffered a killer whale attack, or a collision with a ship, she says; instead, the injuries are likely due to entanglement in fishing gear. When the marine mammals feed in areas with lots of fishing gear, debris, and other human-made objects, ropes and nets can get stuck at the base of their tail, gradually sawing off the fluke or cutting off blood circulation until it withers away. (Read how industrial fishing takes up half the planet’s oceans.)

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earthstory: Rainbow Whale Spout

earthstory:

Rainbow Whale Spout

This is a gray whale off the coast of Point Loma, California in February. Within the spout is a well-known optical illusion: a rainbow.

Rainbows can only be seen if water droplets are present with a light source (such as sunlight) that strikes the water at a 42-degree angle. When the light enters the droplets it is refracted, or bent. It is then reflected back out of the droplet, where it is refracted again at multiple angles. This is what makes the color spectrum appear.

Rainbows formed in sea spray, such as this one, are slightly smaller than bows formed from rain or other freshwater sources because saltwater is better at refracting light. However, the difference is so small that it is not noticeable.

– RE

Photo Credit: Jim Grant

References:
http://epod.usra.edu/blog/2015/03/spout-bow.html

http://bit.ly/1CzVzSD

dynamicoceans:

dynamicoceans:

mexico the whales by janeau on Flickr.

When orcas hunt gray whale calves in Monterey …

When orcas hunt gray whale calves in Monterey Bay, those hunts can often take hours. After all that effort, often all they want is the tongue and skin around the jaw. (Blue Planet)

Orcas in Monterey Bay hunting gray whale calve…

Orcas in Monterey Bay hunting gray whale calves (Blue Planet)

Orcas in Monterey Bay hunting gray whale calve…

Orcas in Monterey Bay hunting gray whale calves (Blue Planet)

Orcas in Monterey Bay hunting gray whale calve…

Orcas in Monterey Bay hunting gray whale calves (Blue Planet)

Orcas in Monterey Bay hunting gray whale calve…

Orcas in Monterey Bay hunting gray whale calves (Blue Planet)