Search Climate Insights Directory
1 result
What’s the biggest animal that has ever lived?
Blue whales are the largest animals to have ever lived, reaching lengths of 100 feet and weights of 200 tons. They are the loudest animals on Earth, using low-frequency calls reaching 188 decibels for communication and navigation. As filter-feeders, they consume up to 8,000 pounds of krill daily. While genetically distinct from fin whales, hybrid blue-fin whales exist. Populations remain depleted from 19th-century commercial whaling and currently face threats from ship strikes, pollution, and climate change, leading WWF to initiate the safeguarding of "blue corridors" for their migration.
AI-generated
This summary is written by a language model reading the source document. It is not the publisher's words and is not a substitute for the original.
Document type: Fact sheet