"These whales are actually manufacturing these tools," Szabo says. "And so we think that really elevates these animals, or it should elevate these animals in our own consciousness, in terms of their cognition."
"They're perfect nested rings within each ring," Szabo says. "Finally, the humpback lunges upwards, gulping the krill in one big bite. The technique confines the krill into a much smaller space, increasing the density of the prey by about seven times, Szabo says."
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