Photo of the Day

The Tribute Penny

Among collectors of ancient coins, the Tribute Penny has great appeal, especially to Christians. You may recall from your study of the Bible that Matthew 22:17-22, Mark 12:15-17 and Luke 20:22-26 all describe Jesus commenting on a denarius, a coin that we would refer to today as a "penny". Tell…
February 5, 2005
CaliforniaSan DiegoSharksUnderwater 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…
February 4, 2005
FishFloridaUnderwater Life

Photo of Mangrove Snapper in Three Sisters Spring

Mangrove snapper.Image ID: 02685Species: Mangrove snapper, Lutjanus griseusLocation: 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 holed up in…
February 2, 2005
Photo of the Day


Recently we were approached about producing Fractal Images for a client. With the correct software, and a sufficiently powerful computer, these are quite simple to create. Here are a few examples we made: The Mandelbrot Fractal. Fractals are complex geometric shapes that exhibit repeating patterns typified by self-similarity, or the…
February 2, 2005
CaliforniaHarbor SealLa 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…
February 1, 2005
Guadalupe IslandMexico

Guadalupe Island Spearfishing World Record

The fellows who freedive at Isla Guadalupe (Mexico) in search of giant fish are some of the most skilled and intrepid hunters in the world. They literally enter the food chain in a way that terrestrial hunters do not. This notion is especially true at Guadalupe Island, a haven to…
January 31, 2005

What? is a natural history stock photography website that first appeared in 1998 as an exercise to learn what the world wide web and websites were, learn to write the HTML to bring a site into being, get it hosted and see if the world thought anything of it. Considerable…
January 29, 2005


Phillip Colla bio: I am a natural history photographer and writer. I focus on wild marine mammals, the California kelp forest, inhabitants of remote eastern Pacific islands, National Parks of the American West and, most recently, waves. I am fortunate to have visited many spectacular terrestrial and underwater settings as…
January 28, 2005