Scientists Say Toxin in Red Tide Killed Scores of Manatees". New York Times. July 5, 1996 . Retrieved 1 May 2010.

Oldest living manatee in captivity dies a day after celebrating 69th birthday". 23 July 2017 . Retrieved 2017-07-23. There are many conservation programs that have been created to help manatees. Save the Manatee Club is a non-profit group and membership organization that works to protect manatees and their aquatic ecosystems. Founded by Bob Graham, former Florida governor, and singer/songwriter Jimmy Buffett, this is today's leading manatee conservation club. [72] [ self-published source?] O'Shea, Thomas J.; Lynn B. Poché, Jr. (2006). "Aspects of Underwater Sound Communication in Florida Manatees (Trichechus manatus latirostris)". Journal of Mammalogy. 87 (6): 1061–1071. doi: 10.1644/06-MAMM-A-066R1.1. ISSN 0022-2372. JSTOR 4126883. S2CID 42302073.IDXChannel– Tahukah Anda siapa pemilik Menantea? Bagi Anda pecinta minuman teh segar, Anda tentu sudah tak asing dengan brand yang satu ini. Manatees are also related to a huge, subarctic sirenian called the Steller's sea cow ( Hydrodamalis gigas), which was hunted to extinction in the 1760s. Generally, manatees swim at about 5 to 8km/h (3 to 5mph). However, they have been known to swim at up to 30km/h (20mph) in short bursts. [16] Intelligence and learning Manatee postures in captivity

Winger, Jennifer (2000). "What's in a name? Manatees and Dugongs". National Zoological Park. Friends of the National Zoo. Archived from the original on 30 December 2005 . Retrieved 19 June 2015. Marmontel, Humphrey, O'Shea 1997, "Population Variability Analysis of the Florida Manatee, 1976–1992", Conserv. biol., 11: 467–481) The main causes of death for manatees are human-related issues, such as habitat destruction and human objects. Their slow-moving, curious nature has led to violent collisions with propeller-driven boats and ships. Some manatees have been found with over 50 scars on them from propeller blades. Natural causes of death include adverse temperatures, predation by crocodiles on young, and disease. a b Service, U. S. Fish and Wildlife. "U.S. Fish and Wildlife Service to Reclassify West Indian Manatee from Endangered to Threatened". www.fws.gov (Press release). Accurate population estimates of the West Indian manatee in Florida are difficult. They have been called scientifically weak [39] because they vary widely from year to year, with most areas showing decreases, and little strong evidence of increases except in two areas. Manatee counts are highly variable without an accurate way to estimate numbers. In Florida in 1996, a winter survey found 2,639 manatees; in 1997, a January survey found 2,229, and a February survey found 1,706. [18] A statewide synoptic survey in January 2010 found 5,067 manatees living in Florida, the highest number recorded to that time. [40]Manatees are fully aquatic, but as mammals, they need to come up to the surface to breathe. When awake, they typically surface every two to four minutes, but they can hold their breath for much longer. The longest recorded dive was 24 minutes by a West Indian manatee in Florida. T]he overwhelming documentation of gruesome wounding of manatees leaves no room for denial. Minimization of this injury is explicit in the Recovery Plan, several state statutes, and federal laws, and implicit in our society's ethical and moral standards. [18]