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1. KILLER WHALES? MORE LIKE KILLER DOLPHINS!
Even though orcas are also known as killer whales, they are the largest member of the dolphin family.2. ORCAS ARE PRETTY BIG!
Orcas measure 5.5 - 9.8 metres in length (females are usually smaller than males) and they weigh up to 5,500 kg. The male orca's dorsal fin can be up to 1.8 metres making it the largest of all the cetaceans (marine mammals including whales, dolphins and porpoises).3. HOW TO IDENTIFY AN ORCA
Individual orcas can be identified by their dorsal fins and saddle patches behind them, and any visible scars.4. YOU DON'T WANT TO SEE THEM SMILE...
Orcas have 100 pointed teeth used to grasp and kill their prey.5. ORCAS HAVE A SIMILAR LIFESPAN TO HUMANS
Orcas can live for up to 90 years, with females usually living longer than males.(s)orgUK
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