A blue whale can send a call through the ocean with a voice deeper than almost any animal sound on Earth. The strange part is not only that other blue whales can hear it. It is that killer whales, the only known natural predator of blue whales, may largely mi…
A blue whale can send a call through the ocean with a voice deeper than almost any animal sound on Earth. The strange part is not only that other blue whales can hear it. It is that killer whales, th… [+7571 chars]