Game wardens in California are now using DNA fingerprinting analysis to help protect illegal poaching of wildlife. There are many species, from large game to shellfish, which are being illegally caught or killed for food. Since there are so few game wardens to patrol the state, they are relying on forensic evidence to help track poachers. Listen to learn about the latest in DNA fingerprinting technology.
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Biologists studying killer whales face the challenge of studying organisms that spend a majority of their time underwater. From extensive research, scientists have learned that killer whales have adapted their sounds to help them catch prey. Scientists are looking to do more research, but it's difficult to find the whales in the first place. Listen to learn more about the methods scientists use to understand killer whale noises.
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Oceans around the world are seeing declines in healthy reefs. The increase in ocean temperatures due to global warming is one of the factors that is causing this deterioration. Part of the coral reefs are endangered, but some corals are still thriving despite the increase in ocean temperature. Listen to learn who relies on coral reefs and what would happen if they completely deteriorated.
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There is debate whether fish like the bluefin tuna are going to go extinct. Some argue that the decline in bluefin results from excessive fishing. However, longtime bluefin fishers like Eric Stewart disagree with this stance as he sees an increasing population of bluefin. Listen to hear from both sides, and how one bluefin tuna can swim across the entire ocean.
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As plants and animals reproduce over time, they are able to change and adapt to ensure or improve their chances of survival. The evolutionary goal of reproduction is paired with the concept of natural selection and survival of the fittest to determine who will reproduce. From colorful plumage to size, different species use different strategies to ensure reproduction and mate selection. The sand tiger shark has a unique strategy to ensure successful reproduction - and it depends on the timing of mating. Listen to learn more about the ultimate sibling rivalry while in the womb.
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