A Tisket, A Tasket, Now You Found a Basket STAR!
Posted on May 7th, 2015
Most of us see sea stars in shallow coastal waters—or as images of these colorful creatures. Basket stars are shy during the day and live in shallow and deep waters.
Featured Creature
Thank Goodness We’ve got Crabs
Posted on February 25th, 2015
Sand crabs, also called mole crabs, live in the constantly shifting sands at the edge of the beach and ocean, called the swash zone. To stay put, this small crab (.75 to 2 inches) burrows backwards as fast as it can. As a wave breaks over it, the crab sticks out its feather-like antennae to catch plankton.
What’s the Buzz? Beloved Bees!
Posted on January 15th, 2015
Did you know that one out of every three bites of food we eat is brought to us from our friends the honey bees? Just watching a hive for a few minutes, you can see more functional order than our culture can imagine. If bees were to disappear, human mankind would have less than four years to live.
Earthworms
Posted on November 19th, 2014
We’ve all seen earthworms and think we know all about them. But do we? We think they’re good for our gardens, and that’s true. They aerate the soil and provide nutrients. But what’s good for the garden isn’t good for most forests in North America. That’s because earthworms are an invasive species. When the ice sheets moved across the continent more than 10,000 years ago, they wiped out native earthworms. Today, most earthworms north of Pennsylvania are non-native. They arrived with the European explorers.
Three Cheers for the Pom Pom Anemone!
Posted on October 1st, 2014
photo source: http://www.gbif.org/species/116785650#images
Most of us have seen sea anemones on the rocky shores. But, the pom-pom anemone (Liponema brevicornis) lives unattached on muddy seafloors at depths of 330-3,300 feet. It feeds on food particles drifting by. They have been found near hydrothermal vents and cold seeps as well as near whale carcasses.
The pom-pom anemone can be puffed up like in the top picture, or can flatten out more like a rolled tube. Scientists have seen the anemones in this shape being blown by currents on the sea floor like a tumbleweed. Another common name for this animal is the tumbleweed anemone. (But, we prefer Pom-Pom).
HUZZAH!
Carnivorous Sponges
Posted on September 8th, 2014
Photo from National Oceanic and Atmospheric Administration
How can a sponge catch prey when it just sits on the bottom of the ocean pumping water? It seems that even the sponge’s simple body plan has evolved a way to trap animals and then eat them. Talk about Adaptability!
Green Bomber Worm
Posted on July 1st, 2014
Many marine worms (Annelids) live in the waters of the deep sea. One, named the green bomber worm lives as deep as 3,000 meters (1.9 miles) beneath the surface. It’s dark that deep in the ocean with only the occasional light from deep sea creatures, called bioluminescence.
The green bomber worm, Swima bombiviridis, is a segmented worm that releases tiny fluid filled sacs that glow in the dark. The sacs are modified gill parts near its head. Researchers think that, when threatened by a predator, the worm drops this glowing “bomb” to distract the predator. The researchers observed worms swimming backwards after dropping the “bomb.”
Staghorn Coral, Swim Free and Thrive!
Posted on June 26th, 2014
Corals are cnidarians, in the same large family as anemones. There are more than a thousand coral species worldwide, but the best known are the stony corals, like staghorns, which make skeletons of calcium carbonate. What looks like one organism is actually a colony made of tiny coral polyps that look like tiny anemones. Inside each polyp live plant-like cells called zooxanthellae that produce food from sunlight, supplying energy to the coral. In turn, the coral polyp supplies the zooxanthellae with nutrients from the ocean and shelter. It’s these zooxanthellae that are sensitive to the increase in ocean temperatures.
Giant Pacific Octopus
Posted on May 16th, 2014
The giant Pacific octopus is the largest octopus, with arms up to 16 feet long and weighing as much as 100 pounds. Ranging from Japan to Alaska to Baja California, this octopus lives in shallow coastal waters to depths of 5,000 feet. Each of the octopus’ eight arms is covered with as many as 200 suckers that are sensitive to touch and taste. And it’s a smarty pants, too: octopuses are big-brained invertebrates.
Watch an octopus catching a crab here: http://shapeoflife.org/video/behavior/molluscs-octopus-catching-crab
Sea Urchin
Posted on April 11th, 2014
The purple sea urchin that lives in the west coast of the United States is an echinoderm with tube feet and long spines and a mouth with strong jaws. It’s a voracious herbivore that can have a devastating influence on its environment if not held in check by predation.