Manatees don’t have a very interesting life cycle. There are many unique things about manatees. They can be 13 feet long, 800-1200 lbs; and can live to be 60 years old. A manatees mother takes care of it for it’s first 2 years and is ready for mating at about 4 years of age. manatees have no natural predators but are still endangered.
Pollution and human impact has been wrongfully hurting West Indian Manatees The manatee is a big sea mammal that is also known as the sea cow. The manatees weigh about 650 lbs and are nearly 8.5 ft. long on average. The West Indian manatee lives in the warm waters off the coast of Florida. The West Indian manatee was placed on the endangered species list in 2016, the manatee has recently been moved to the threatened list due to the many people gathering together and to help and save the manatees. The reason the West Indian manatee was endangered in the first place was because of human impact and the pollution they have put into their environment.
Manatees are mammals known to live for about 50-60 years, but unfortunately, they were short-lived and died after ingesting/inhaling toxins, which later affected their organs. In the cases of the deceased manatees, it was found that severe renal, hepatic, cerebral, pulmonary, and nasopharyngeal congestion was found. Through the use of *immunohistochemical staining, traces of brevetoxins were found in the secondary lymphoid tissues, lung, and liver. Toxic algae in the water is recognized for moving through the air like a powder, which puts manatees at risk due to inhalation. Also, toxic algae may be found in the plants that they eat, affecting their gastrointestinal system.
When in the wild meerkats average around the age of ten. Meerkats measure to about seventeen to twenty-four inches in length including their tail. Male meerkats typically weigh a bit more than females who typically weigh a fourth pound less than male meerkats. Meerkats are small animals that are often considered cute, just due to their
Stillbirth and abortion are important functional traits in dairy cattle breeding, from both economic and animal welfare points of view. Stillbirth is realized as doom of a calf that occurs merely prior to, during, or within 24 to 48 h of parturition (Philipsson et al., 1979). Factors influencing stillbirths are diversified. Furthermore, genetic, environmental, and management factors have varying degrees of effectuation on stillbirths. Often it is difficult to determine what causes a calf to be stillborn, however one or more factors (e.g., parity, sex of calf, gestation length) may contribute to a complex collection of events when the final outcome is a stillborn calf.
Whereas in case of dugongs,they are also seen to breathe through their special nostrils .Dugongs also follow the same process as that of manatees as mentioned above. CIRCULATION Manatees have circulatory system same as mammals.The manatee has four chambered heart. It beats for about 60 times per minute as compared to human heart which beats for about 80 times per minute.A manatees heart is seen to beat slow as 30 heartbeats per minute on longer dives. Whereas in dugongs it has double ventricular apex of heart. The unusual feature of the sirenian heart is that the heart has double subvalvular conus and dorsal left atrium.The brachial artery of retial structure is seen to play an important role in thermo-regulation.
Adult octopuses usually weigh 15 kgms and an arm span of 4.5 feets. The smallest species recognized is Octopus wolfi with a size around 2.5 cm and weighs less than 1 gm. They are the most evolved among cephalopod class. Cephalopod literally means head-footed. Octopus is bilaterally symmetrical
Female white sharks are thought to reach reproductive age at around 17 years. After an incubation period between 12 and 18 months the great white gives birth to between 4 and 14 pups. They are born roughly 1.2 meters long (3.9 feet) and weighing 50 to 60 pounds. Research has shown that the pups get their nutrients through eating unfertilized eggs and other embryos while in the uterus. Female great white sharks are thought to give birth to new litters every 2 or 3 years.
They will sometimes travel hundreds of miles to lay their eggs on the same beach where they were hatched. Green Sea Turtles mate every two to four years, and they can mate up to three to five times per season. When the females are ready to lay their eggs they climb onto shore where they dig a pit to lay their eggs. After they have laid their eggs they cover them up with sand and then go back into the ocean. Females lay anywhere from 100 to 200 eggs.
A study conducted in the Okinawa Churaumi Aquarium shows that whale sharks only live for less than two years in captivity when their average lifespan is more than 60 years when in the wild. According to One Green Planet,a website for the growing compassionate and eco-conscious generation,the same applies to elephants as even though they live for 50-60 years in the wild, most in captivity live until less than the age of 40. This is due to the extreme distress they suffer from and the lack of freedom. A dolphin conservationist and dolphin trainer Ric O'Barry from the “Dolphin + Whale” project of International Marine Mammal Project (IMMP) and his own organisation Ric O’Barry’s Dolphin Project witnessed his formerly trained dolphin commit suicide due to depression in captivity. “Dolphins are not automatic air-breathers like we are," he explains.