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"Barking" for dinner in the Moonlight
 The
Porcupine (Erethizon dorsatum) is a slow moving, bristly creature.
It is most active at night, but can be seen during the day resting
in trees (roosting) or sometimes lumbering through the stands
of spruce and fir within the park.
When spring comes, the porcupine's winter diet of spruce and
fir bark changes to greens like Common Plantain, grasses and clover.
You'll still see the evidence of their nocturnal winter snacking
because patches, and even whole tree trunks, have been stripped
of their protective layer of bark. On the south side of the park
are many damaged trees. The salt spray from the Bay makes this
tree bark irresistible to this member of the rodent family.
In the spring visitors may see a mother porcupine and her single
new born.
The 560 g (20 oz) baby will reach a weight of 14 kg (30 lb.) during
its 20 year maximum life span. The newborn's 5 mm (1/4 in) long
quills quickly harden and reach a length 60 -70 mm (2.5 - 2.75
in). An adult may have more than 30,000 quills, each with a muscle
to raise and lower it for defence.
Despite their slowness on the ground, porcupines are very agile
climbers with 25 mm (1 in) long curved claws and paw pads to help
them climb.
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