Wildlife

California Fish Marine Life Underwater Life

Photo of California Sheephead Wrasse

The California sheephead wrasse, Semicossyphus pulcher, is an interesting fish. It begins its life as a female and remains so until adulthood. When the region's dominant adult male dies or leaves then switcheroo! one of the remaining adult females will switch genders to assume the role of dominant male of…

Phil CollaFebruary 13, 2005

Hawaii Humpback Whale

Photos of Humpback Whale Pectoral Fin Displays

Humpback whales, Megaptera novaeangliae, are known for displaying a wide range of surface behaviors (i.e., behaviors seen from above water), such as breaching, head lunging, tail lobbing and spyhopping. Among these behaviors, pectoral fin displays are some of the most interesting. Humpback whales have the longest pectoral fins of all…

Phil CollaFebruary 11, 2005

California Central Coast Elephant Seal

Newborn Northern Elephant Seal, Central California

Mother and newborn pup Northern elephant seals, Mirounga angustirostris, central California coast. This newborn pup had just been born minutes before this photo was taken. Placental material, seen in the background, has attracted sea gulls who will consume it. The pup will be weaned surprisingly fast, in as little 2-3…

Phil CollaFebruary 8, 2005

California San Diego Sharks Underwater Life

Blue Shark Eye to Eye

Blue shark showing ampullae of Lorenzini, eye and small portion of nictitating membrane.Image ID: 01076Species: Blue shark, Prionace glaucaLocation: San Diego, California, USA This is a photograph of a blue shark, Prionace glauca. We bait for them offshore of San Diego, anywhere from 5 to 20 miles offshore (however far…

Phil CollaFebruary 4, 2005

Blue Whale Natural World Underwater Life

The Blue Whale, Largest Animal On Earth

The blue whale, Balaenoptera musculus, is the largest animal ever to have lived on Earth. Depending on which expert is cited, blue whales once attained lengths of 100 to 120 feet (32 meters) and have weighed up to 160 tons (145 metric tonnes). Blue whales are found throughout the worlds…

Phil CollaFebruary 4, 2005

California Fish Ocean Sunfish San Diego

Ocean Sunfish Floating On The Ocean Surface

Here's a photograph we licensed today for a book in Australia. Can you guess what the bright white object is? Ocean sunfish.Image ID: 02030Species: Ocean sunfish, Mola molaLocation: San Diego, California, USA It is an OCEAN SUNFISH (Mola mola), laying flat on the ocean's surface, far offshore of the San…

Phil CollaFebruary 3, 2005

Fish Florida Underwater Life

Photo of Mangrove Snapper in Three Sisters Spring

Mangrove snapper. Image ID: 02685 Species: Mangrove snapper, Lutjanus griseus Location: Three Sisters Springs, Crystal River, Florida, USA I spent a week one winter hanging out at the Three Sisters spring in Crystal River, Florida, photographing manatees. Early in the week the weather was cold so plenty of manatees were…

Phil CollaFebruary 2, 2005

California Harbor Seal La Jolla

Photos of La Jolla Seals

Controversy over the La Jolla seals continues. To make a long story short: a group of Pacific harbor seals (Phoca vitulina) has taken up residence on the sand at the Children's Pool, a small pocket cove in La Jolla, California also known as Casa Cove. Their presence there has led…

Phil CollaFebruary 1, 2005

Florida Manatee Marine Life Underwater Life

Photo of West Indian Manatee, Crystal River, Florida

A West Indian manatee, also known as a Florida manatee, at the Three Sisters Springs on the Crystal River, Florida. A Florida manatee, or West Indian Manatee, swims slowly through the clear waters of Crystal River. Image ID: 02696 Species: West Indian manatee, Trichechus manatus Location: Three Sisters Springs, Crystal…

Phil CollaFebruary 1, 2005

Great White Shark Guadalupe Island Mexico Underwater Life

Sex and the Single Shark

In the world of wildlife study, in which efforts are made to identify and track individual animals over time, researchers can fall prey to the temptation to name their subjects. There is considerable debate about the merits of this, as some scientists feel that assigning names to the animal subjects…

Phil CollaJanuary 30, 2005