Gray whales use Earth's magnetic field like a GPS to navigate their migrations, but cosmic bursts of radio static may throw them off.
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A 35 million-year-old whale fossil is a brand new species and represents an intermediate stage between foot- and tail-powered swimming.
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Blue whale hearts work at extremes—from just 2 beats per minute when diving up to a maximum of 37 beats per minute at the ocean surface.
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Bats and whales that use echolocation both owe it to specific changes in a set of 18 genes involved in the development of the cochlear ganglion, research finds.
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To steer clear of predators like orcas, right whales tone down their vocalizations, which "can be thought of almost like a human whisper."
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"...these animals, which lived hundreds of thousands of years ago, were all undertaking migrations similar in extent to those of modern-day whales."
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