the ribbon seals most defining feature, their stripes, take 4 years to develop!
here is a short timeline of their development 🦭
adorable white coat ribbon seal pups. this baby fur is called lanugo.
after around 1 month pups will start shedding their baby fur to reveal a grey and silver coat
young seals with their grey and silver coat
then, the juvenile seals with start to develop their stripes over the next 3 years. they grow stronger with each moult, females can reach sexual maturity before they have fully developed stripes. this mothers stripes aren’t fully there yet.
once they’re 4 years old a ribbon seals stripes will have fully developed.
male and female are easy to tell apart by their coat colour, the males will have bold black and white stripes
whereas the females have more brown/beige/silver stripes
[ID: A ribbon seal laying on its side on some netting on ice, staring up at the camera. The seal had a tracker with a single antenna sticking directly up in the air on top of its head.] via
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Cool Facts- Ribbon seals have a massive amount of dependence on arctic sea ice. They almost never set flipper on the mainland, instead using sea ice to sleep, socialize, and give birth. Ribbon seals have a unique form of movement on the ice, slithering across like a snake and using their clawed flippers to drag themselves along in a graceful freestyle stroke. Males have a massive air sac that helps their calls to travel in the water while searching for a mate. When the environment is less than suited for a pup to be born, a mother ribbon seal can delay her pregnancy for up to four months. Pups are born completely white and are often left alone on an ice flow while their mother hunts. Predators are rare but the pup will play dead and wait for mom to return when faced by an orca circling their icy home.
Found in arctic regions of the northern Atlantic Ocean, the Ribbon Seal can be immediately distinguished from all other seals thanks to the distinctive banded fur of adults (typically black-and-white in males, while females can be black-and-white or brown-and-white), the purpose of which is something of a mystery (it has been suggested to be a form of camouflage, but how such a striking pattern would be any more effective as camouflage than the countershading seen in many other marine mammals is unclear.) Ribbon Seals spend the majority of their lives in the open ocean where they live solitary lives and feed on squids, octopuses and bony fishes such as cods, pollocks and eelpouts. During the later winter and early spring, however, large numbers of Ribbon Seals haul themselves onto masses of sea ice that are disconnected from the mainland to mate, give birth and undergo seasonal molts. During the mating season males will court females by producing grunts and roars using an inflatable sac in their throat (with each male courting and mating with several females), and after mating females are capable of delayed implantation (meaning that they can delay the development of fertilized ova until the ideal conditions to give birth in are met, in this case when sea ice is at its most abundant, to allow an embryo to develop.) After a gestation period of around 10-11 months a female Ribbon Seal will give birth to a single pup which is born with soft, fluffy white fur that (though suitable for providing camouflage and insulation) is not water tight, forcing them to remain on the ice they were born on until their adult coat develops (at which point their mother will guide them into the ocean and teach them how to hunt.)
these seals are so cool because of their patterned coat. the strips of circular white wrapped around the general black fur coat is so friggin cool!!! this striped pattern only develops after 4 years. they live in the arctic parts of the pacific ocean. they r also ice seals! ribbon seal pups look like harp seal pups so they were hunted for their fur, however since ribbon seals are more individual creatures and don’t form herds, they were harder to capture. (yippee!!!) these seals are predicted to survive global warming, isn’t that cool? what do u think of the ribbon seal? :3