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Text and/or other creative content from this version of Animal echolocation was copied or moved into Marine mammal with this edit on 19:37, November 28, 2016. The former page's history now serves to provide attribution for that content in the latter page, and it must not be deleted as long as the latter page exists.
First off, they do have hair but it is very small and fine; all mammals have hair. Second, evolution is only a theory and I think putting it as fact is not befitting of an encyclopedia. — Preceding unsigned comment added by 72.166.222.8 (talk) 03:12, 18 December 2006 (UTC)[reply]
Well, they do have some hair, but lambasting evolution is not a method of commenting about marine mammals. Evolution is a widely accepted theory, and this article is about making changes to the article on marine mammals, not about ones beliefs.—Ryūlóng (竜龍) 03:24, 18 December 2006 (UTC)[reply]
Because something is widely accepted does not make it true. I was widely accepted, before Pasture, that microorganisms spontaneously generated. Evolution is a theory and should be stated as such, this is why I changed it on the page.Ssmith16518:21, 6 April 2007 (UTC)[reply]
A river otter picture is featured on this page. As far as I know river otters aren't marine mammals. If someone with more authority agrees, please remove the river otter picture and replace with a sea otter picture.
Aquatic mammal redirects to this article, but this article doesn't discuss the platypus, any species of river otter, etc. I think that either this article should be renamed "aquatic mammal" and extended to cover other aquatic mammals besides just marine ones, or the redirect should be removed and a separate "aquatic mammal" article begun. What do y'all think? —RuakhTALK16:40, 14 February 2009 (UTC)[reply]
New article definitely! Marine mammals, as presented in this article, refers very specifically to cetaceans, pinnipeds, sirenians, the sea otter, marine otter and the polar bear. These are mostly associated with saltwater with the exception of freshwater seals and dolphins. It's a slightly ad-hocy category and definitely not taxonomic, but for historical/management reasons these organisms are grouped together as an object of study (see: http://www.marinemammalogy.org/), despite the obvious closer relationships between sea otters and river otters and polar bears and brown bears for example. I don't believe there is a similar combined study of freshwater aquatic mammals, but there are quite a few that should at least be listed in a separate articles. Platypus and many species of otter, of course, but also beaver, hippopotamus, nutria, muskrat, others? I just don't know what other generalizations can be made about them. Eliezg (talk) 21:01, 14 February 2009 (UTC)[reply]
I've started the article. I don't really know anything about the topic, so it's a tiny stub so far. But fortunately, we have articles on lots of aquatic and semi-aquatic mammals, so it took me less than five minutes to put together a small image gallery, at least. :-P —RuakhTALK14:54, 15 February 2009 (UTC)[reply]
The comment(s) below were originally left at Talk:Marine mammal/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.
;Rating: start-class
This article gives a pretty superficial overview of Marine Mammals as a body of research or study. For example, it seems that a comparison of marine mammals to other mammals is of more interest than one that compared it with other marine life. Live births, fur and breathing air are all de facto mammal features that probably don't need more than one sentence as a reminder to the reader. The number and variety of unique adaptations for surviving in the aquatic environment, however, are truly fascinating. Also, there is so incredibly much more to marine mammal research than disease, and so many more research institutions worldwide than the Marine Mammal Center. As it stands, the article is almost better off without the Research section entirely - until it gets expanded. Perhaps I'll come back later and contribute more content. Cheers! Eliezg (talk) 12:25, 5 December 2007 (UTC)[reply]
Last edited at 19:44, 5 July 2012 (UTC).
Substituted at 23:10, 29 April 2016 (UTC)
This article is on Marine mammals; mammals that live in the ocean. Yet is also includes freshwater mammals. Marine is strictly ocean related. We already have an Aquatic mammal article. LittleJerry (talk) 17:46, 18 June 2016 (UTC)[reply]
Should I just move everything to the Aquatic mammal article and revert Marine mammal to the May 29 version (before I added freshwater mammals)? The Aquatic mammal article includes both freshwater and saltwater mammals.User:Dunkleosteus77 |push to talk23:51, 18 June 2016 (UTC)[reply]
Commercial hunting lead to the extinction of Steller's sea cow I think it would be more accurate to say it was the final nail in the coffin of the species, which had declined across most of its range due to subsistance hunting
Comment from another unaffiliated editor: I have removed pixel based sizes from thumbnails per WP:IMAGESIZE. Where displaying images larger than normal is preferable, (e.g. diagrams and maps) please use the upright factor instead. One may also want to look at MOS:IMAGELOCATION and chose to alter images to align left only when there are elements that "look" left (e.g. not the dolphin diagram). Thanks and good luck with the GAR! – Finnusertop (talk ⋅ contribs) 04:37, 3 August 2016 (UTC)[reply]
@Finnusertop: Actually I just included the thumb parameter and pixel based sizes to keep the caption. If I just did pixel based sizes and excluded thumb, there wouldn't be a caption. Also I put the dolphin diagram on the left because it's eye is pointing to the right. I hope it's okay if I undo your edit? User:Dunkleosteus77 |push to talk16:26, 3 August 2016 (UTC)[reply]
Perhaps in the distribution section a paragraph or even subsection on migration would be good. Whales in particular are highly migratory. Also, it might be nice to have a section on conservation (threats is important, but people are working to save them too!) Sabine's Sunbirdtalk06:00, 4 August 2016 (UTC)[reply]
Maybe we should do a joint GA review or something, it is a pretty massive article... One thing that looks off is "Mammals have returned to the water in many separate evolutionary lineages". This is too vague, many mammals have "returned to the water", but this article is specifically about marine mammals. Otherwise the list would be huge, and you would have to mention stuff like Castorocauda. Also, doesn't seem clear from the article which group of mammals were the first to return to the ocean? Also, since when has the polar bear, which is at best semi-aquatic, been considered a "marine mammal"? FunkMonk (talk) 19:58, 21 August 2016 (UTC)[reply]
For the polar bears, you can see why here. Also the article says " In comparison to cetaceans, sirenians, and pinnipeds, which entered the water approximately 50, 40, and 20 mya, respectively, the sea otter..." and before that it said sea otters entered the ocean 2 mya. Now that I'm writing this I realised I forgot to write about polar bears and pinnipeds... User:Dunkleosteus77 |push to talk20:37, 21 August 2016 (UTC)[reply]
I think this interrupted review can be completed quickly, given the good state of the article at that time and the work done on it to attend to items noted in the earlier review, so I will confine myself largely to checking that the repairs have been completed. Chiswick Chap (talk) 14:21, 30 December 2016 (UTC)[reply]
This is a fine article, well up to GA standard. I have fixed a couple of minor issues.
The cladogram would benefit from small images of representatives of the groups concerned - in fact, the images in the column above would be more useful in the cladogram than scattered alongside the text. You might also illustrate the non-marine groups in the cladogram for comparison.
I find the military coverage still somewhat long for the topic, and hinting at a regional viewpoint, but within the guidelines. I would advise trimming it before attempting FAC. Chiswick Chap (talk) 14:46, 30 December 2016 (UTC)[reply]
@Chiswick Chap: The caption for the cladogram seems a bit too vague, but I can't figure out how to fix it. It currently reads "Groups in bold contain marine mammals", but if that's the case then Mammalia and Placentia should also be in bold, which seems excessive and undermines the point of bolding text. Any ideas? User:Dunkleosteus77 |push to talk01:38, 1 January 2017 (UTC)[reply]
Guess we want to say simply 'Families' really, though I see that the idea of Clades is hovering nearby. It seems well worth bolding the leaf nodes that contain (and in most cases are exclusively) MMs; having the Order Pinnipedia which is a clade of MMs bolded also seems very sensible. The visual meaning, here be whales, is clear enough, and certainly useful. Chiswick Chap (talk) 09:29, 1 January 2017 (UTC)[reply]
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The dolphins would swim up behind enemy divers and attach a buoy to their air tank, so that they would float to the surface and alert nearby Navy personnel. Sea lions would hand-cuff the enemy, and try to outmaneuver their counter-attacks.
This seems a bit farfetched to me, especially because it might come from a self-published source. I suggest somebody looks into this just to make sure. — Preceding unsigned comment added by 68.118.175.138 (talk) 20:49, 9 June 2021 (UTC)[reply]