A study by David Mech and Michael Nelson about mating patterns in North American Gray Wolves. The study was conducted on radio tagged wolves in the Superior National Forest of Minnesota. It is commonly understood that Gray Wolves mate for life, most commonly with a member of the same pack and can produce as much offspring as a litter per year of their adult life. This article defies that pre-conceived notion, following a single male who interacts with multiple females while they are both in heat. The male is tracked meeting with both females at the same time over 19 times, always in areas far from the occupation of any other wolves or packs. It is interesting to see that, like humans, wolves have a tendency to stray from the common institution of a single mate for life.
This site details the poison parsnip growth process and the effects it can have on skin afflicted by it under sunlight. It also discusses the invasiveness of the species.
Building a Cabinwas done to provide the emmigrant farmer with temporary shelter from the weather and protection from wild animals while the barn was built. As John Rempel points out in Building with Wood (1967), there was a difference between a log house and a log cabin.
This site informs people of the potential harm this plant (Poison Parsnip) can cause when exposed to sunlight, and the cautionary measures people can take to avoid direct contact with this plant.
SPECIES CHARACTER Description The thick taproot of the wild parsnip is long, conic, and fleshy. Branching from the fleshy root is the light green, hollow, deeply-grooved stem that stands erect at 2-5 feet (0.6-1.5 meters) tall. Leaves are alternate, pinnately compound, and branched with saw-toothed edges.
Another site describing chemicals that are used to control poison parsnip. The common chemicals are 2, 4-D and Round UP, which could be interesting to test on the seeds.