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A polar bear lifting his head to smell the scent of humans nearby
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Polar Bear Impacted by Climate Change

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Leatherback turtles (Dermochelys coriacea) are the largest sea turtles, growing as long as six and a half feet (2 m) and weighing some 2,000 pounds (900 kg). They’re unlike the other marine turtles in two important ways: they have a thick leathery carapa
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Leatherback Turtle

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Kemp’s ridley turtles (Lepidochelys kempii) are the smallest sea turtles, weighing only 100 lbs (45 kg). Adults spend most of their time in shallow coastal areas in places with mud, sand, or gravel bottoms—often in seagrass beds. They eat swimming crab
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Kemp's Ridley Turtle

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“Tomales Bay is a narrow, protected waterway along the San Andreas fault. In years past, it was known for its thriving fishing industry. This boat is a relic from better times for local fishermen, and few of its kind can still be found today. The ridgeli
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Fishing Boat, Point Reyes National Seashore, California, USA

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A geneticist samples shark DNA
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Dr. Mahmood Shivji

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Scientists document a direct relationship between Arctic sea ice and polar bear survival.
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Forecast for Polar Bear Populations

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The fringed baleen plates are easy to observe as this North Atlantic right whale skims the water’s surface while it feeds.
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Baleen in Action

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Two baby olive ridley sea turtles.
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Baby Sea Turtles in Jalisco, Mexico

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A ribbon worm curled up in a mud flat.
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A Ribbon Worm From the Mud Flats

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A map that shows wind and current patterns of Belize, Guatemala and Honduras.
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A Possible Pathway for the Pumice

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By pumping enormous test tubes that are 60-feet deep and hold almost 15,000 gallons of water with carbon dioxide to make the water inside more acidic, researchers can study how zooplankton, phytoplankton and other small organisms will adapt in the wild.
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Studying Acidification in the Field

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Every year, at the same place and time, thousands of female Kemp's ridley sea turtles come ashore to nest and lay their eggs on the beach. This mass nesting event is known as an arribada, meaning “arrival by sea” in Spanish.
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Kemp's Ridley Nesting "Arribada"

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