Now famous among squirrels for its feats of daring! (This morning in the garden—probably a Coopers hawk.)
seen from Italy

seen from United States

seen from United States
seen from United States
seen from Belgium
seen from United States
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seen from Switzerland

seen from Switzerland

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seen from United States

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seen from T1
Now famous among squirrels for its feats of daring! (This morning in the garden—probably a Coopers hawk.)
I have a new visitor to my back deck... it's a small, highly melanated gray squirrel. He's very fiesty. He just chased all the other animals off the deck and moved the food bowl to the edge, twice. He almost dumped it over the edge the first time I saw him doing this so I went outside and put it back in the middle of the deck. I came back to the door 5 minutes later, and he had pulled it to the opposite edge and was about to dump it over again... so now Petey and I are sitting on the deck so the others can eat in peace. He's adorable!! He's about the size of a chipmunk. He's, also, very spirited!! All the other squirrels and birds take turns and share the food, but this little guy wants it all to himself. That's okay... he's new here. He'll learn that there's enough for everyone... I hope 😄🤣🐿
At first, the new squirrel had no problem with the bird on the deck, but then he chased it off and started pulling the bowl around. I love it out here... there's always something going on with all the wildlife!!
Japanese gray squirrel.
Hokkaido, Japan.
had the pleasure of seeing this leucistic/dilute gray squirrel this morning!
A Western gray squirrel (Sciurus griseus) foraging for food in Yosemite National Park, California.
by Robyn Waayers
So glad I have this trail cam to document the diversity in my yard
silent hill: squirrel
MC1R - Melanocortin 1 Receptor
Part I.
Part II. (mammals)
This gene encodes the receptor protein for melanocyte-stimulating hormone (MSH). The encoded protein, a seven pass transmembrane G protein coupled receptor, controls melanogenesis. Gene mutations that lead to a loss in function are associated with increased pheomelanin (red pigment) production, which leads to lighter skin and hair color; on the other hand gain of function mutations cause melanism.
Northern and southern marsupial mole
yellow
Inheritence: fixed variant.
image source
Mouse
recessive yellow (two mutations)
sombre (three mutations)
tobacco darkening (from the tobacco mouse)
tawny
mutaped-c3pde 59
Inheritence: sombre and tobacco are dominant, yellow is recessive.
sombre and wild type (on nonagouti, but agouti sombres are also this dark), recessive yellow
Oldfield mouse
light
Inheritence: intermediate.
dark and light
Mongolian gerbil
recessive yellow
fading yellow
Inheritence: both are recessive to the wild type, temporally codominant with each other: heterozygotes start out looking like recessive yellows and end up very close to fading yellow.
wild type (A/_ E/_), recessive yellow (A/_ e/e), black recessive yellow (a/a e/e), fading recessive yellow (_/_ ef/ef)
Guinea pig
bicolor
brown
Inheritence: order of dominance is wild type (black) > bicolor > brown.
bicolor, brown
Gray squirrel
melanism
Inheritence: intermediate.
brown-black (Eb/E), jet-black (Eb/Eb)
Rabbit
steel
japanese brindle
red
Inheritence: wild type is dominant over red, otherwise everything is pretty much intermediate to varying degrees.
supersteel (EsEs), steel (black Ese, blue and black EsE), harlequinized chestnut (Eej), harlequin (ejej), "torted harlequin" (eje) [real torted harlequins are nonagoutis, this is agouti, so phenotypically harlequin], red (ee)
Dog
melanistic mask
domino/grizzle/cocker sable (three mutations with similar effects)
recessive red(/yellow/cream/white) (three mutations)
Inheritence: order of dominance is melanistic mask > wild type > domino group > recessive red.
melanistic mask (on saddle tan), recessive red, domino, grizzle, cocker sable (all on black-and-tan)
Coyote
white (two possible mutations, one is identical to one of the dog recessive red alleles)
Inheritence: recessive.
image source
Red fox
alaska silver
Inheritence: intermediate.
silver (BB) with silver (BB) and cross (Bb) kits
Arctic fox
blue
Inheritence: dominant.
image source
Racoon dog
yellow
Inheritence: unknown.
image source
American black bear
Kermode
Inheritence: recessive.
image source
Antarctic fur seal
blond
Inheritence: recessive.
image source
Domestic cat
amber
carnelian
russet
Inheritence: amber and russet are recessive to the wild type, carnelian is intermediate; their interactions are unknown.
amber (ea/ea), russet (er/er), copal (E/ec), carnelian (ec/ec)
Geoffroy's cat
melanism
Inheritence: dominant.
image source
Jaguarundi
dark
Inheritence: intermediate.
various color variants
Jaguar
melanism
Inheritence: dominant.
image source
Pig
dominant black (three mutations)
black spotting on red/white
red (two mutations)
Inheritence: order on dominance is black > wild type > black spots > red.
dominant black, red, black spotting
Cattle
dominant black
recessive red (three mutations)
Inheritence: order of dominance is dominant black>wild type>recessive red.
black and red (the white spotting is unrelated!)
Zebu
red (two mutations)
Inheritence: very likely recessive.
image source
Yak
imperial nose color
Inheritence: dominant.
imperial (black) nosed adult and native (gray) nosed young
Arabian camel
white
Inheritence: dominant.
image source
Sheep
dominant black (three mutations)
recessive pheomelanin
Inheritence: wow, i truly wonder.
black (the fleece often fades in adulthood), yellow spots (spots only because the breed is extensively white spotted)
Goat
black
Inheritence: dominant.
image source
Reindeer
dark belly (two mutations)
Inheritence: dominant.
image source
Fallow deer
menil
white
Inheritence: recessive to the wild type, intermediate with each other.
menil, white
Wooly mammoth
light
Inheritence: unknown.
No image, for obvious reasons.
Horse, Przewalski's horse
chestnut (two mutations)
Inheritence: recessive.
domestic horse, Przewalski's horse
Donkey
red
Inheritence: recessive.
image source