Some of the oceans biggest, most powerful predators, like certain sharks and tuna, are “mesothermic” or warm-bodied. Running hot allows them to rapidly convert their food to energy and heat, helping them swim faster and hunt in cold waters. But that advantage may become a disadvantage in a warming climate, meaning these fish need to find new ways of cooling off, or face a new threat to their survival. PLUS: Ancient Peruvians traded parrots across deserts and mountainsFrom the archive: David, Jay and Bob, and Quirks & Quarks' origin storySea cucumber 'zombie tissue' straddles the...
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B2 · 中高级
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这一集适合你吗?
B2 · 中高级
能看懂电视新闻就会觉得轻松
- 87% 的单词在 B1 或更简单的水平。
- 每分钟 160 词:自然语速。
- 整集共有 234 个较难的单词(B2 及以上)。
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较难的单词(B2+)
All your favorite CBC podcasts are now available on YouTube. The best in award-winning true crime investigations, hilarious comedies, vibrant pop culture conversations, and even more audio series are all available on CBC Podcast's YouTube channel. You'll also find exclusive video first episodes, YouTube shorts, and behind-the-scenes content from our hosts and producers that
you can't find anywhere else. So if YouTube is your go-to source for podcasts, just search CBC Podcast and hit subscribe and you'll never miss the latest update. This is a CBC Podcast. Hi, I'm Bob McDonald. Welcome to Quirks and Quarks. On this week's show, how some of the ocean's biggest
and most powerful predators may be at risk of overheating in a warming world. As fish get big, and particularly these warm-bodied ones, it's actually increasingly hard for them to lose their heat from their body. And a surprising discovery by sea cucumber researchers that left them scratching their
以上是开头部分。 本集其余部分(53 分钟)在播放器中:每个单词都可点击,附翻译、生词收藏和单词卡。
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