Is the domestic dog unique, among extant Carnivora, in possessing an ischial flag?

The domestic dog (Canis familiaris) possesses an ischial flag (https://www.facebook.com/awdri.com.au/photos/a.339435487132/10152520888147133/?type=3).

https://hoodline.com/2020/04/7-cuddly-canines-to-adopt-now-in-plano/
https://www.youtube.com/watch?v=mDyHM6-5iIU
https://www.youtube.com/watch?v=GF11t8SVYaw
https://www.youtube.com/watch?v=x2wuOY3ONdE
https://www.youtube.com/watch?v=_MpuSPhXa7M
https://www.youtube.com/watch?v=PSoiyK7N8KM

This feature, viz. a conspicuously pale, bilaterally symmetrical patch on the buttocks, is restricted to individuals - produced by perhaps more than 100 breeds as different as chihuahua and rottweiler - with the black-and-tan colouration.
https://www.shutterstock.com/image-photo/kelpie-puppy-dreaming-next-new-adventure-1176771838
This, in turn, implies that the real main ancestor of the domestic dog - which was not the wolf (Canis lupus) - also featured an ischial flag. This is because no extant wild species of Canis possesses this feature.

Given the above, it occurs to me that perhaps the domestic dog is the only member of the Carnivora on Earth that retains an ischial flag in the extant fauna.

Bold colouration on the buttocks is associated with prey animals, rather than predators.

More particularly, they are associated, among mammals, with certain ungulates such as gazelles.

Lynx rufus
https://www.flickr.com/photos/bobcatweather/6018355559

Lynx canadensis
https://www.alamy.com/canada-lynx-kitten-lynx-canadensis-walking-in-the-winter-snow-in-montana-usa-image371234360.html?imageid=427F479C-4E21-4E80-A765-99F14BA1BB04&p=359637&pn=1&searchId=88bd808e7e04286c70bcfbba03a37eac&searchtype=0
https://www.alamy.com/a-wild-canadian-lynx-felis-lynx-crossing-an-unplowed-rural-road-in-alberta-canada-image398126694.html?imageid=0CFBD8D8-5C2C-44EA-8E78-CA57555FCF7C&p=166893&pn=1&searchId=88bd808e7e04286c70bcfbba03a37eac&searchtype=0
https://www.alamy.com/stock-photo-a-canadian-lynx-walking-through-the-tall-grass-34041969.html?imageid=218875A8-3C22-4757-895B-15C3D08B1B7A&p=166893&pn=1&searchId=88bd808e7e04286c70bcfbba03a37eac&searchtype=0
https://www.alamy.com/view-of-a-lynx-walking-away-from-the-camera-image483319964.html?imageid=4C860C54-A9FD-41E8-8775-9F0F12D9418E&p=1403655&pn=1&searchId=88bd808e7e04286c70bcfbba03a37eac&searchtype=0
https://www.alamy.com/a-wild-lynx-cat-felis-lynx-canadensis-walking-through-the-deep-snow-in-rural-alberta-canada-image398126650.html?imageid=5D88DF38-0AD1-409A-BB1E-96B630FF8472&p=166893&pn=1&searchId=88bd808e7e04286c70bcfbba03a37eac&searchtype=0
https://www.alamy.com/view-of-a-lynx-walking-away-from-the-camera-image460434784.html?imageid=CCF2B7C9-F66F-4A80-AC0E-4C8CD2202013&p=410857&pn=1&searchId=88bd808e7e04286c70bcfbba03a37eac&searchtype=0
https://www.alamy.com/a-wild-lynx-cat-felis-lynx-canadensis-walking-through-the-deep-snow-in-rural-alberta-canada-image398126647.html?imageid=43CF579D-4699-4D05-89BD-DFF539FDFB67&p=166893&pn=1&searchId=88bd808e7e04286c70bcfbba03a37eac&searchtype=0
https://www.alamy.com/big-wild-lynx-cat-seen-walking-across-a-dirt-road-in-northern-canada-during-summer-time-looking-at-camera-in-natural-environment-background-image426381478.html?imageid=AE0171EB-D9A4-42BE-9C8C-633F2FC5F069&p=1446820&pn=1&searchId=88bd808e7e04286c70bcfbba03a37eac&searchtype=0
https://www.alamy.com/big-wild-lynx-cat-seen-walking-across-a-dirt-road-in-northern-canada-during-summer-time-long-legs-greenery-natural-environment-background-image426380570.html?imageid=74FB63E5-7B83-4918-BFA6-22539603A5B0&p=1446820&pn=1&searchId=88bd808e7e04286c70bcfbba03a37eac&searchtype=0

Julkaistu tammikuu 24, 2024 03:45 AP. käyttäjältä milewski