Today's Catch
Mar 5, 2013
Gobies make up the largest family ( Gobiidae ) of fishes in the world, with over 2,000 species. In this large family you can also find the smallest fish. The gobies in this photo are about one inch long (2.5 cm), and most in the family are less than four inches. Because of their small size gobies must work to evade their many predators, often through burrowing or special mutualistic relationships...Read more
Mar 4, 2013
Credit:L. Madin, Woods Hole Oceanographic Institution (www.cmarz.org)
This colony of Rosacea may look like a single jellyfish, but it is actually a large group of smaller siphonophores clustered and living together. In fact, the zooids (individual siphonophores living in the colony) cannot survive on their own. This specimen was photographed by the Census of Marine Zooplankton , a project of the Census of Marine Life , in the Sargasso Sea in April 2006. A Rosacea...Read more
Mar 1, 2013
Seals and sea lions have many similarities, and are in the same family of Pinnipeds, but they lead very different lives. Seals are smaller than sea lions; male Stellar sea lions can grow to be up to 2,200 pounds. Seals also are suited to spend more time in the water than sea lions, which can "walk" on shore with their large flippers and spend time in large social groups. Another give-away is that...Read more
Feb 28, 2013
How many animals swim in the sea? It's not easy to count them all. To get a feel for the ocean's diversity, scientists, such as those involved in the Census of Marine Life , sail out on research cruises to collect and count as many animals as they can find! Shown here is a sample of zooplankton collected in a trawl net with a 10-meter-square opening, including a jellyfish, a lanternfish, a snipe...Read more
Feb 27, 2013
The polar bear ( Ursus maritimus ) is found in the Arctic and classified as a vulnerable species by the IUCN Red List of Threatened Species. This marine mammal can swim more than 30 miles when sea ice has receded due to warm temperatures. Listen to a podcast from Encyclopedia of Life that tells the story of two personal encounters with a polar bear!Read more
Feb 26, 2013
Two fossilized teeth from a megalodon ( Carcharodon megalodon ) dating back more than 20 million years. The ancestry of great white sharks has long been debated, but by looking closer at shark teeth scientists know that the giant megatooth shark was not an ancestor of the great white shark. More about the great white shark can be found in our Great White Shark featured story .Read more
Feb 25, 2013
When you think of African animals, what do you think of? Probably the “Big Five:” lions, elephants, leopards, buffalo and rhinos. But Africa also has an incredible amount of marine diversity in the coral reefs and open water surrounding the continent. Consider the ocean’s “Big Five” —whale sharks, giant manta rays, humpback whales, dolphins, tiger sharks—in this blog post from a researcher...Read more
Feb 21, 2013
These beautiful pink and yellow shimmering fish ( Parapriacanthus ransonneti ) live in large groups among corals and in caves where they feed on zooplankton at night. “Golden sweepers form schools in reef crevices and caves and among coral heads. The technique I employed to make this image was a long exposure and rear curtain synchronization combined with a circular rotation of the camera during...Read more
Feb 20, 2013
A strain of this green seaweed , native to the Indian and Pacific Oceans, escaped public and private aquariums in California, Japan, Australia, and Monaco. It has spread widely in the Mediterranean , replacing native plants and depriving marine life of food and habitat. In California , it was eradicated at considerable cost using toxic chemicals. Read " No Passport Required: Five Invaders You...Read more
Feb 19, 2013
The majestic and highly predatory red lionfish ( Pterois volitans ) , native to the Indo-Pacific, is invading Atlantic waters. The lionfish is a popular home aquarium species, and some were most likely dumped off the Florida coast when no longer wanted. The result is a lionfish population explosion that now threatens native species like snapper, grouper, and sea bass. Read " Five Invasive Species...Read more








