Whale tail in Sydney, Australia. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3283600/free-photo-image-whale-swimmingFree Image from public domain licenseAn orca performing at Seaworld San Diego. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3338257/free-photo-image-sea-animals-orca-animalFree Image from public domain licensePods of Killer Whales Patrol the Ice Edges. Original public domain image from Flickr https://www.rawpixel.com/image/4042412/photo-image-background-ocean-natureFree Image from public domain licenseIntroduction to zoology; a guide to the study of animals, for the use of secondary schools (1900) animal art by Charles… https://www.rawpixel.com/image/10547273/image-art-vintage-cartoonFree Image from public domain licenseIdentifier: introductiontozo00dave Title: Introduction to zoology; a guide to the study of animals, for the use of secondary… https://www.rawpixel.com/image/9976256/image-art-vintage-bookFree Image from public domain licenseKiller whale (Orcinus orca), Short-finned pilot whale (Globicephala macrorhynchus), False killer whale (Pseudorca… https://www.rawpixel.com/image/9976396/image-art-vintage-lightFree Image from public domain licenseOrca whale surfacing in the Alaskan sea. Original public domain image from Flickr https://www.rawpixel.com/image/3392506/free-photo-image-orca-alaska-animalFree Image from public domain licenseKeeping Up Southern Resident Killer Whale mother and her calf swimming.(Original source and more information: National Ocean… https://www.rawpixel.com/image/4044163/photo-image-ocean-fishFree Image from public domain licenseAn orca in Craig, Tongass National Forest, Alaska. (Forest Service photo by Francisco Sanchez). Original public domain image… https://www.rawpixel.com/image/3391112/free-photo-image-orca-alaska-animalFree Image from public domain licenseTaken by NPS / Jim Pfeiffenberger. Original public domain image from Flickr https://www.rawpixel.com/image/3392499/free-photo-image-alaska-animal-birdFree Image from public domain licenseTriathletes wearing blueseventy, Orca and 2XU wetsuits on beach, location unknown, 2 April 2017. View public domain image… https://www.rawpixel.com/image/6113307/photo-image-public-domain-ocean-peopleFree Image from public domain licenseOrca or Killer whale (Orca rectipinna, Orca Ater) from Natural history of the cetaceans and other marine mammals of the… https://www.rawpixel.com/image/328235/free-illustration-image-whale-orca-vintageFree Image from public domain licenseWhale Research in Rarotonga, September 1, 2015.Original public domain image from Flickr https://www.rawpixel.com/image/8753875/photo-image-plant-public-domain-fishFree Image from public domain licenseTaken by NPS / Jim Pfeiffenberger. Original public domain image from Flickr https://www.rawpixel.com/image/3392391/free-photo-image-alaska-animal-cc0Free Image from public domain license