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.
In taxonomic terms, they form the family Hystricidae. The New World porcupines are indigenous to North America and northern South America. They live in wooded areas and can climb trees, where some species spend their entire lives. They are less strictly nocturnal than their Old World relatives, and generally smaller.hey live in forests and deserts, and on rocky outcrops and hillsides. Some New World porcupines live in trees, but Old World porcupines stay on the rocks. Porcupines can be found on rocky areas up to 3,700 m (12,100 ft) high.