A marine creature dating to 508 million years ago, with two claws and 50 legs, is the first known arthropod on record to have mandibles.
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A newborn humpback whale learns early in life to use its "indoor voice" to avoid attracting the attention of nearby killer whales.
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Young humpback whales communicate quietly with their mothers, likely to avoid attracting the attention of hungry predators.
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A 508-million-year-old critter — one that looks like a weird lobster with 50 legs, two claws and a tent-like shell — is the oldest known arthropod with mandibles on record, a new study finds.
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Researchers have identified the first arthropod with mandibles on record.
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Scientists have identified a new species of small, toothy mammal that once ruled the food chain in Africa almost 40 million years ago.
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Severe mouth pain likely led the Tsavo lions to kill and eat people 119 years ago in Kenya.
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India's big cats and wilds dogs get along surprisingly well.
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A new study could help explain why so many snow leopards get killed in retaliation for eating domestic animals.
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Scientists triggered mice's kill instinct.
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