Breast density is a consideration for the somewhat younger group as well. Those women ages 50-62 with dense breasts--i.e. hard to image with mammograms--may well be doing themselves a disservice to embrace the every 3 year embrace of the mammogram plates.reast density is a consideration for the somewhat younger group as well. Those women ages 50-62 with dense breasts--i.e. hard to image with mammograms--may well be doing themselves a disservice to embrace the every 3 year embrace of the mammogram plates.
The Congo Basin is Africaâs largest contiguous forest and the second-largest tropical rainforest in the world. Covering about 695,000 square miles, this swamp-struck tropical forest covers portions of Cameroon, Central African Republic, Democratic Republic of Congo, Republic of the Congo, Equatorial Guinea and Gabon.
Much of Africa had been deforested relatively recently, and has become savanna. There are four forest zones â the Guinea forest of recent origin on the west coast, the Nigerian forest, the Cameroon-Gabon forest, and the Congo forest, which is by far the largest. These forests are all species-poor in comparison to those in Asia and the Americas, and many large pantropical families (such as the palms, lianas and epiphytes) are poorly represented.