this application is screensaver of free killer whale wallpaper
orcas have long, rounded bodies with large dorsal fins at the middle of their backs. their black bodies are marked with white patches on the underside and near the eyes. orcas feed on fish, squid, and marine mammals. orca whale wallpapers. like dolphins, orcas use echolocation bouncing sound off of objects to determine their location - to hunt and use a series of high-pitched clicks to stun prey. members of orca pods very often work together to catch a meal. pod members sometimes will force many fish into one area and then take turns feeding or will beach (slide out of the water onto the shore) themselves to scare seals or penguins into the water, where other killer whales are waiting to feed. orca whale wallpapers.
found in all oceans of the world, orcas are most common in the arctic and antarctic and are often spotted off the west coast of the united states and canada. orcas are found in both coastal waters and open ocean. orca whale wallpapers are highly social animals that travel in groups called pods. pods usually consist of 5 - 30 whales, although some pods may combine to form a group of 100 or more. orcas establish social hierarchies, and pods are lead by females. the animals are thought to have a complex form of communication with different dialects (slightly different language) from one pod to another. recent studies have found that orcas are amongst the most contaminated marine mammals in the world. pollution and chemical contamination make orcas more susceptible to disease and likely cause reproductive difficulties. southern resident orcas, orca whale wallpapers, a genetically distinct group of killer whales, may disappear forever unless action is taken. defenders of wildlife is working closely with a coalition of local and national environmental groups and scientists to develop a comprehensive recovery plan that will address all of threats to this endangered population of orcas and implement strategies to recover them.