In most species, sex is determined during fertilization. However, the sex of most turtles, alligators, and crocodiles is determined after fertilization. The temperature of the developing eggs is what ...

Understanding trends in sea level, as well as the relationship between global and local sea level, provides critical information about the impacts of the Earth's climate on our ocean and atmosphere.

This NOAA nautical chart shows the Intracoastal Waterway. The magenta line is a directional guide on Intracoastal Waterway nautical charts. HOST: Welcome to Diving Deeper. I’m your host, Kate Nielsen.

Schools of colorful pennantfish, pyramid, and milletseed butterflyfish live on an atoll reef in the Northwestern Hawaiian Islands. The most common type of reef is the fringing reef. This type of reef ...

If searching for gold, this ROV wouldn't find it. Gold in the ocean is so dilute that its concentration is on the order of parts per trillion. Pictured above, the ROV Deep Discoverer investigates the ...

New Jersey and South Carolina currently forbid any harvesting of horseshoe crabs, and Delaware restricts harvesting to males only. Despite their common name, horseshoe crabs are not really crabs ...

It appears that your browser doesn't support HTML5 video. Here's a direct link to the video instead. Corals are a beautiful and important part of our ocean. But they can't move around the ocean floor.

Over time, many coral reefs develop similar biogeographic profiles. Moving seaward from the shore, the reef flat, reef crest, and forereef or reef front form the major zones common to most reefs. The ...

The threats to coastal communities include extreme natural events such as hurricanes, coastal storms, tsunamis, and landslides, as well as longer-term risks of coastal erosion and sea level rise.

The National Spatial Reference System (NSRS) is a consistent coordinate system that defines latitude, longitude, height, scale, gravity, and orientation throughout the United States NOAA's National ...

Stony corals exhibit a wide range of shapes. Click on the images below to view a larger image and a description of these corals.

Pocosins are generally found along the Atlantic coastal plain of the United States, from southern Virginia to northern Florida. These areas typically occur in broad, low-lying shallow basins that do ...