Figure 1 : Changes in species occurrence during the Pleistocene–Holocene transition.

From: Ancient DNA reveals that bowhead whale lineages survived Late Pleistocene climate change and habitat shifts

Figure 1

Ancient DNA analysis of radiocarbon-dated balaenid subfossils identified the occurrence of a true Arctic species, the bowhead whale, south of 59°N during the Pleistocene, which is then replaced by the right whale during the Holocene. Insert shows a map of the study area and locations of the samples used in this study: Late Pleistocene bowhead whale subfossil samples (blue squares); Early Holocene bowhead whale subfossil samples22 (blue circles); and Early Holocene right whale subfossils (purple circles).