About the Authors

Cheng Chen

Roles Data curation, Formal analysis, Investigation, Methodology, Software, Visualization, Writing – original draft

Affiliation Department of Anatomy, College of Basic Medicine, Dalian Medical University, Dalian, China

Sheng-bo Yu

Roles Formal analysis

Affiliation Department of Anatomy, College of Basic Medicine, Dalian Medical University, Dalian, China

Yan-yan Chi

Roles Investigation

Affiliation Department of Anatomy, College of Basic Medicine, Dalian Medical University, Dalian, China

Guang-yuan Tan

Roles Investigation

Affiliation Haichang Ocean Park Holdings., Ltd, Biological Conservation Center, Shanghai, China

Bao-cheng Yan

Roles Investigation

Affiliation Haichang Ocean Park Holdings., Ltd, Biological Conservation Center, Shanghai, China

Nan Zheng

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Project administration, Writing – original draft, Writing – review & editing

suihj@hotmail.com (HJS); zhengnan831016@163.com (NZ)

Affiliation Department of Anatomy, College of Basic Medicine, Dalian Medical University, Dalian, China

Hong-Jin Sui

Roles Conceptualization, Funding acquisition, Project administration, Resources, Supervision, Validation, Writing – review & editing

suihj@hotmail.com (HJS); zhengnan831016@163.com (NZ)

Affiliations Department of Anatomy, College of Basic Medicine, Dalian Medical University, Dalian, China, Dalian Hoffen Preservation Institution, Dalian, China

Competing Interests

Haichang Ocean Park Holding Co., Ltd. is responsible for the breeding of Gentoo Penguin (Pygoscelis Papua) and provides the basic data related to the penguin specimens for this research group. Another part of their work is the study and popularization of science related to penguins. The authors have declared that no competing interests exist. This does not alter our adherence to PLOS ONE policies on sharing data and materials.