Orcas - Top of The Ocean Food Chain?
フードチェーンのトップは誰ですか?人間じゃないよ!
Orca Top of The Food Chain
Top 10 AMAZING FACTS About Orcas (Killer Whales)
This Is Why Orcas Are Called Killer Whales
シャチ - ホオジロザメを殺すシャチ
これがシャチがシャチとして知られる理由です
TOP 5 OF THE FOOD CHAIN DEADLY MARINE PREDATORS
Interesting Facts about Orcas, Killer Whales.
ORCAS - This Is Why The Killer Whale Is The Super Predator Of The Sea
Learn About Orca: Educational Video About Orca and ESL Listening Lesson - Iconic Canadian Animals