Why some whales are giants and others are just big

The animals’ sizes depend on feeding style and prey availability, researchers say


In a new study of foraging behaviors and body size, scientists attached sensors to more than 100 individual cetaceans (two humpback whales off Antarctica in 2018, shown) and tracked them over a decade.

Goldbogen Lab./Stanford Univ., Duke Univ. Marine Robotics and Remote Sensing. Photo taken under permit ACA/NMFS #14809

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