Related to this action, progesterone. 1  Decreases sensitivity to oxytocin. 2  Oxytocin (a hormone from the posterior pituitary) increases the frequency and strength of uterine contractions. 3  During late pregnancy, the progesterone level may drop to 250 mg/day.
Swamp Walks. One of the wildest and most wonderful aspects to hiking in Florida is the availability of swamp walks through many habitats in Florida. These watery wades immerse you in habitats found nowhere else on earth.
Swamp, wetland ecosystem characterized by mineral soils with poor drainage and by plant life dominated by trees. The latter characteristic distinguishes a swamp from a marsh, in which plant life consists largely of grasses. Swamps are found throughout the world. They exist in areas with poor drainage and sufficient water supply to keep the ground waterlogged, and they have a high enough supply of minerals in the water to stimulate decay of organisms and prevent the accumulation of organic materials.