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🤯 Did You Know (click to read)
Newborn sei whales can weigh over 700 kilograms at birth.
The gestation period of Balaenoptera borealis aligns with other large baleen whales, allowing calves to be born at substantial size and developmental readiness.
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💥 Impact (click to read)
Long gestation supports advanced physical development at birth, which is critical for survival in open ocean environments where calves must swim immediately.
Extended reproductive cycles also mean populations recover slowly after heavy exploitation, as females typically give birth every two to three years.
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