Necks for sex: sexual selection as an explanation for sauropod dinosaur neck elongation

The immensely long neck of a sauropod is one of the most familiar and striking of anatomical specializations among dinosaurs. Here, I use recently collected neontological and paleontological information to test the predictions of two competing hypotheses proposed to explain the significance of the long neck. According to the traditional hypothesis, neck elongation in sauropods […]

The distribution of the giraffe in Africa

The range and numbers of giraffe have been decreasing in Africa with the expansion of civilization and with extensive poaching activities. Various articles have been published recently on the status of the large wild animals in different countries of Africa and the reports on the giraffe, together with data from correspondence with many of the […]