There are 4 stages in a manatees life cycle. Manatees are born of live young, their mother takes care for 2 years, then they are ready for mating, and then they are a adult. There mother takes care of their offspring for its first 2 years of life. Manatees can live up to 60 years old. Manatees don’t have a very interesting life cycle.
The red panda’s mating season is from January to March in the Northern Hemisphere and in the Southern Hemisphere they breed from June to August. The mating occurs on the ground. The females are pregnant for around 114 to 145 days. Two cubs are usually delivered between May and July, and they usually weigh between 3.9 and 4.6 pounds. The cubs are completely covered in fur so they can be warm during the cold climates.
The Grizzly bears are most likely to live to be around the age range of twenty to twenty five. During their younger years of three to eight years old, the females start mating from May through July, more so in mid-June, and then start having their young. Their litter size usually varies from one to four cubs, with an average of two cubs in a litter. These cubs from the same litter may be born with a different father, and are born in their den in late January or early February. The mother then stays with the young for two to three years before the mother leaves her young and mates again to have another litter.
Overfishing is a big problem because each year, starting in 1988, about 3,800 fish were caught, but after that, the amount of fish began to fluctuate.. The second main problem is the temperature change in the lake, the water is becoming too warm in which some organisms in the lake may not be able to handle. An organism like Daphnia thrive at a temperature 20°C, but recently the temperature has been 21°to 24°C, this is too warm for the Daphnia which could be why many organisms in the lake are having a hard time
Humans were not around at the time the monk seals arrived, and the monk seals are more commonly found in the Northwestern Hawaiian Islands that are less inhibited by people compared to the Main Hawaiian Islands with a larger human population (Lowry et al, 2011). The Hawaiian monk seal population has been in a rise and fall ever since the discovery of the monk seals by a Russian explorer in 1805. Due to its discovery, the monk seal population virtually died out by the mid 1800’s due to the commercial seal hunting and being killed for food by sailors and whalers (Lowry et al, 2011). Until the mid 1900’s, the seals were never seen and thought to be extinct because they were never seen by hunters or sailors, but the first beach count survey was taken in 1958, showing a slight recovery (Schultz et al, 2010). Another decline was also seen during the 1960’s-1970’s that showed a 75% decrease in number of monk seals seen on the Northwestern Hawaiian Islands (Gilmartin et al,
Some of the koalas weight is different due to where they live like the northern weighs up to 9 to 19 lbs and the southern weighs up to 15 to 29 lbs, big difference(“Koalas:facts about iconic marsupials”). Male koalas weigh 50% more than females according to San diego zoo. Koalas don’t drink water because they get all their water from the leafs but
What Whale Poaching Really is By: Logan B I believe whale poaching should be outlawed around the world. Bans have warned people to stop hunting the whales but still over 2,000 whales are killed each year. In 1958, thirty eight thousand whales were killed since then, the amount of whales killed has dropped to thirty six thousand whales from that time. There are almost four whales killed each day. If someone is caught violating the laws it will result in civil penalties up to $11,000 or criminal penalties up to $100,000 plus, one year of prison time.
They rely on sea ice to hunt and store energy for summer and fall, when food can be scarce. Sea ice is now melting earlier in the spring and forming later in the fall. For every week earlier the ice breaks up in Hudson Bay, bears come ashore roughly 22 pounds lighter and in poorer condition. Unhealthy bears can lead to lower reproduction rates. (“Threats To Polar
This question seemed to perk him up some and when he did talk, he was very excited. He said that Northern Fur Seals spend most all their time in open waters and mainly come to shore annually to breed. Also, that they preferred rocky beaches when they did reproduce (NOAA Fisheries 2015). They stay mostly in the Atlantic and Pacific oceans, but have been found all the way up in the Arctic and lower down near Japan and California. Jared said that he mostly ate fish, squid, and other marine invertebrates, which he explained to me were marine animals without vertebrae or spines.
The emperor penguin has multiple adaptations that has allowed it to survive in the harsh winters of Antarctica and pass on their genes to the next generation. Physical, behavioral, and morphological features that have developed throughout the evolution of a penguin to make it into what it is today. When looking at the physical features of a penguin, there are many characteristics that enable it to survive. Webbed feet, streamlined bodies, and flipper like wings, contribute to their ability to live in the water for most of their life. The ancestors of the penguins developed special joints to enable it to swim instead of fly.
Although the leopard and elephant seals share similar colour features, you can easily distinguish between the two species. The elephant seals spends 80% of their life in water. The leopard seal is considered the most ferocious seal in the antarctic. The leopard seal is the only seal species who will prey on its own kind as well as penguins, fish, krill, and squid. Elephant seals on the other hand only prey on fish and squid.
Journalist Ashley Pierce observed that, in the wild, male orcas live to an average of sixty-five years while females live an average of ninety years. The natural environment creates more than double the lifespan faced in captivity (Pierce 1). Orcas live a shortened lifespan in captivity because the whales can not handle the lack of space given. Over a period of the orcas’ life in confinement, results in the bodies shutting down more and more every day. The Beacham 's Guide to the Endangered Species of North America, expresses that, orcas venture throughout the Pacific Ocean within the whales lifespan (Killer Whale 1).
Baby gray whales can consume as much as 300 gallons of milk per day during their first year of birth. 44. Once a hunted and endangered species the gray whale is now considered one of the most popular marine mammals to those who participating in the whale watching industry. 45. A fully grown gray whale can weigh just as much or more than 5 adult elephants.
This had a huge effect on the planktons. Zooplanktons the eat phytoplankton. If there isn’t much phytoplankton for the zooplankton to eat, there numbers will decrease. The article “ The Short‐Term Impact of the Zebra Mussel Invasion,” “phytoplankton fell by 80 percent. Zooplankton (which eat phytoplankton) declined by half.
In Maryland, Nutria greatly impacts the marshes in a negative way because since they breed all year there is no cap to their reproductive capacity, no natural predators in Maryland, and they eat marsh plants (Kendrot). The Nutria greatly decreases the amount of native habitat of the waterfowl and the muskrat. “The Backwater National Wildlife Refuge has lost about 7,000 acres of Olney three-square brush, 53 percent of the remaining marsh was considered to be unhealthy” and will most likely dissipate in the near future (Kendrot). Nutria has impacted many species even humans. The marshes help filter clean water, are areas for young crab and fish to grow.