Song of the humpback whale may be a ‘sign of loneliness’

Song of the humpback whale may be a ‘sign of loneliness’
A humpback whale breaches off the coast of Port Stephens, Australia (Mark Baker/AP)

Melancholy tunes sung by humpback whales may really be a sign of loneliness, scientists have discovered.

Marine experts who tracked humpback whales in Australia noticed that fewer whales wailed to find mates as their population grew.

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