An unusual mortality event of Harbor porpoises (Phocoena phocoena) off central California: Increase in blunt trauma rather than an epizootic

Wilkin, Sarah; Cordaro, Joe; Gulland, Frances M. D.; Wheeler, Elizabeth; Dunkin, Robin; Sigler, Teri; Casper, Dave; Berman, Michelle; Flannery, Moe; Fire, Spencer; Wang, Zhihong; Colegrove, Kathleen; Baker, Jason
Aquatic Mammals (2012)

In 2007, the apparent increase in the number of harbor porpoises (Phocoena phocoena) stranding along the central California coast compared to the number of strandings the previous year resulted in…

The development of spatial positions between mother and calf of Yangtze finless porpoises (Neophocaena asiaeorientalis asiaeorientalis) maintained in captive and seminatural environments

Xian, Yijie; Wang, Kexiong; Jiang, Wenhua; Zheng, Bangyou; Wang, Ding
Aquatic Mammals (2012)

For many toothed whales, two predominant and multifunctional spatial positions occur between a mother/calf pair after birth: (1) the echelon position and (2) the infant position. Other nonpredominant positions also…