Summary

This document contains some facts about whales, including their size, speed, and communication methods. It also mentions that whales are endangered and that they are an important part of marine ecosystems.

Full Transcript

Big, blue, and endangered: Amazing facts about whales Blue whales are bigger than dinosaurs! Despite their size, whales can swim very fast and travel great distances. Killer whales are an apex predator. Sperm whales often sleep vertically. Whales use song to communicate with each other and keep...

Big, blue, and endangered: Amazing facts about whales Blue whales are bigger than dinosaurs! Despite their size, whales can swim very fast and travel great distances. Killer whales are an apex predator. Sperm whales often sleep vertically. Whales use song to communicate with each other and keep their calfs close.

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