Even though orcas are also known as killer whales, they are the largest member of the dolphin family.Orcas can live for up to 90 years, with females usually living longer than males. Orcas communicate through a range of clicks, whistles, pulsed calls, squeals, squeaks and screams. Orcas have distinct ‘languages’ within their family groups. Moving boats and underwater noise can disrupt orcas when they are feeding and affect their social interactions and echolocation. Overfishing has resulted in the collapse of several fish stocks worldwide, while fishing gear poses a high risk of entanglement for orcas, which can lead to severe injury or death.Orcas are also at risk of toxic contamination from pesticides and industrial chemicals, which can build up in their tissues and organs and affect their immune and reproductive systems. Read more
Coded by Shahrzad Alinezhadraouf