Passage: Their eyes open shortly after their fur coat develops—between 87 and 93 days—and their mouths can relax their hold of the nipple at 100 days. They leave the pouch 105 days after birth, appearing as small copies of the parent and weighing around 200 grams (7.1 oz). Zoologist Eric Guiler recorded its size at this time as follows: a crown-snout length of 5.87 cm (2.31 in), tail length of 5.78 cm (2.28 in), pes length 2.94 cm (1.16 in), manus 2.30 cm (0.91 in), shank 4.16 cm (1.64 in), forearm 4.34 cm (1.71 in) and crown-rump length is 11.9 cm (4.7 in). During this period, the devils lengthen at a roughly linear rate.After being ejected, the devils stay outside the pouch, but they remain in the den for around another three months, first venturing outside the den between October and December before becoming independent in January. During this transitional phase out of the pouch, the young devils are relatively safe from predation as they are generally accompanied. When the mother is hunting they can stay inside a shelter or come along, often riding on their mother's back. During this time they continue to drink their mother's milk. Female devils are occupied with raising their young for all but approximately six weeks of the year. The milk contains a higher amount of iron than the milk of placental mammals. In Guiler's 1970 study, no females died while rearing their offspring in the pouch. After leaving the pouch, the devils grow by around 0.5 kg (1.1 lb) a month until they are six months old. While most pups will survive to be weaned, Guiler reported that up to three fifths of devils do not reach maturity. As juveniles are more crepuscular than adults, their appearance in the open during summer gives the impression to humans of a population boom.  A study into the success of translocated devils that were orphaned and raised in captivity found that young devils who had consistently engaged with new experiences while they were in captivity survived better than young who had not.Embryonic diapause does not...

Question: How many days does it take the fur coat of lion to grow?
between 87 and 93 days