Women do not usually experience symptoms of pregnancy before implantation, but the implantation increases the levels of the pregnancy hormone HCG which will cause most of pregnancy symptoms. In many cases, women will start experiencing these symptoms around week 4.
Porcupines are nocturnal and have poor vision but a very good sense of smell. Porcupines generally like to eat the evergreen tree inner bark and needles, but they do find some hardwoods palatable. They also eat aquatic plants, berries, seeds, flowers, nuts, and grasses.he porcupine is one of the largest rodents in North America, second only to the beaver, and porcupines grow to a length of 2 to 31/2 feet, tail included. They usually weigh between 8 and 14 pounds, although they have been known to weigh upwards of 35 pounds.
Porcupines cannot shoot their quills! Quills are just modified hairs made out of keratin, the same substance found in our own hair and fingernails. The quills do not cover the underside of the porcupine. Porcupines have muscles at the base of each quill that allow them to stand up when the animal is excited or alarmed.Like all hairs, quills do shed, and when the porcupine shakes, loose quills can fly off (but without deadly force).orcupines cannot shoot their quills! Quills are just modified hairs made out of keratin, the same substance found in our own hair and fingernails. The quills do not cover the underside of the porcupine. Porcupines have muscles at the base of each quill that allow them to stand up when the animal is excited or alarmed.