What to know about the Democrats’ sweeping climate bill
Apple News Today
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How Did Blue Whales Become So Big?
Blue whales are the largest animals ever known to have lived on earth. Scientists attached an e k g censer to a whale's flipper using a 20 foot pole. They got data on how slowly a whale's heart can go, sometimes just two beats per minute. Large hearts beat more slowly, and they take longer to replenish oxygen.
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