体育与实时比分
Tom Curry extends Sale Sharks contract
England international flanker Tom Curry signs a two-year contract extension with Sale Sharks.
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科学与环境
Sharks can hear nearly 250 feet away and pinpoint the source
Wild blacktip sharks can detect low-frequency sounds from nearly 250 feet away, according to experiments conducted off the Florida coast. The sharks not only heard the sounds but sharply changed direction away from them, suggesting they could pinpoint where they were coming from.
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