Baleen

ocean. During the 1800’s, there were hundreds of whaling ships active at sea. These vessels inhabited every oceans in the world in vast numbers. Within the recent 100 years, whaling expeditions explored the south seas and discovered hotspots of baleen whales near the arctic. As technology was constantly progressing, so was the demand for the meat and oil (BBC, 2015. Para 7). This resulted in…

Baleen whales undergo the longest annual migrations of any animal (Rice and Wolman 1971, Stone et al. 1990, Rasmussen et al. 2007). The function has generally been accepted as an evolutionary response to the need to feed in colder waters and reproduce in warmer waters (Corkeron and Connor 1999, Learmonth et al 2006). The location of feeding and breeding grounds along migration routes were initially inferred from stomach contents of stranding data and whaling logs (e.g., MacKintosh 1945, Scammon…

Baleen Whales Baleen whales are the largest animals on earth, yet they feed on some of the smallest animals in the ocean. There are 12 baleen whale species divided into 4 families: Right, Pygmy right, Gray, and Rorqual. Characteristic baleen plates and paired blowholes help distinguish baleen whales from toothed whales. Whaling is definitely affecting the world's ecosystems. It has decimated the great whale population, especially in the southern hemisphere. The whales are vital to the food…

porpoises, characterized by a nearly hairless body, broad flippers and a flat notched tail. There are 75 species of Cetaceans, but the two groups are toothed whales and baleen whales. Toothed whales are predators that use their peg-like teeth to catch fish, squid and marine mammals. They swallow them whole. They have one blow hole and use echolocation to hunt. Echolocation is an high pitched sound sent out by the whale. It bounces off the object and then returns to the whale. This tells the…

They eat Squids, Octopus, Rays, Dolphins, Baleen whales, (wow talk about cannibalism), and many more species. It doesn 't matter the size or type of the animal the killer whale will eat it. When they need to catch bigger preys like baleen whales they have a way of hunting them. When Orcas are hunting Baleen whales they usually work together in their groups and chase after their prey until they are exhausted, (like they ran a marathon) and get isolated from their groups and then the killer whale…

the surface of the water. No whale has the same blowhole some have heart shaped ones, bushy shaped ones, and column shaped ones. If you see a whale shot water out its blowhole it’s actually just cold breath. Some of the time they come up for air they release their blowhole then breath in. one weird whale is the sperm whale it has a nostril on the side of it and is considered a left nostril. Most whales can hold their breath for 30 mins. but the sperm whale can hold its breath for 1 hour and 30…

tend to feed on crustaceans specifically krill. The blue whales make yearly trips to the equatorial water from the polar water. Why do they migrate? Well, the reason they migrate is because single whales go look for their future significant others and the other reason is because they are going to reproduce in warmer waters. Although, how whales mate remained, and has remained a mystery to some scientists. The endangerment of blue whales is pretty serious. But now there are a few laws that…

The blue whale is a marine mammal. It is the biggest living creature in world. Their veins are so big that a human could swim in them! The heart of a blue is as big as a slug bug! They are not fish because they breathe air and they give birth. The blue whale’s HABITAT is in every ocean. They like to go to the Antarctic Ocean in the summer and MIGRATE north in the winter where it is warmer. Their APPERANCE grayish blue with tiny eyes. Their teeth are called baleen it is the same thing as your…

Eocene-Oligocene transition of the Southern Ocean: history of water mass circulation and biological productivity. Geology. 24, 163-166. Fitzgerald, E. M. G., 2009. The morphology and systematics of Mammalodon colliveri (Cetacea: Mysticeti), a toothed Mysticete from the Oligocene of Australia. Zool. J. Linn. Soc-lond. 158, 367-476. Fitzgerald, E., 2005. Bizarre baleen whales from Australia's ancient seas. Australas. Sci. 26, 23-27. Fitzgerald, E., 2006. A bizarre new toothed Mysticete…

Blue Whale The blue whale Balaenoptera musculus is a marine mammal belonging to the baleen whales Mysticeti. The blue whale is the largest animal to have ever existed. The blue whale can mature up to 100 feet long and can weigh up to 173 tons. The diet of the blue whale consisits of mostly small crustaceans known as krill but also eat small plants and fish. The blue whale’s body type is long and slender and their body shade varies from greyish blue to a dark navy blue. The whales dorsal can…