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A lungless frog discovered on Borneo

Bickford D.a, Iskandar D.b, Barlian A.b

a National University of Singapore, Singapore
b Institut Teknologi Bandung, Indonesia

[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]The evolution of lunglessness in tetrapods (amphibians, reptiles, birds, and mammals) is an exceedingly rare event. So far lunglessness is known to occur only in amphibians, in particular two families of salamanders [1,2] and a single species of caecilian [3]. Here, we report the first case of complete lunglessness in a frog, Barbourula kalimantanensis, from the Indonesian portion of Borneo (Figure 1A). Previously only known from two specimens [4,5], a recent expedition to central Kalimantan on Borneo rediscovered two new populations of this enigmatic aquatic frog (Figure 1B,C). This allowed for a more comprehensive assessment of the species’ ecology and anatomy that led to the discovery of its lack of lungs. Loss of lungs in Amphibia is most likely due to their evolutionary history at the interface between aquatic and terrestrial habitats and their ancient ability to respire through the skin [5]. © 2008 Elsevier Ltd. All rights reserved.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]We thank Rafe Brown, Rudolf Meier, and two anonymous reviewers for the helpful comments that improved the manuscript. The project would not have been successful without support from Darmawan Liswanto. In the field, we were assisted immeasurably by Mistar Kamsi, Umilaela, Angga Rachmansah, Biofagri A.R., Medi Yansyah, Budi Susilo, Harry Helmi, Doddy Aryadi, and the staff of the Taman Nasional Bukit Baka – Bukit Raya. We thank the Forestry Department, Sintang, Kalimantan Barat for permission to conduct research in the area and the Ministry of Education of the Republic of Singapore for providing funding under Grant #R-154-000-270-112.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1016/j.cub.2008.03.010[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]