The rise of mammals, the Genus Homo, and the ongoing extinction event

Author(s):  
George H. Shaw
Keyword(s):  
2019 ◽  
Vol 41 (1) ◽  
pp. 107-126
Author(s):  
Philippe Lynes

This essay examines certain intersections between writing and extinction through an eco-deconstructive account of the psychoanalysis of water. Jacques Derrida has often drawn attention to the interplay between the sound ‘O,’ and ‘eau,’ in Maurice Blanchot's own proper name, as well as in his novels, récits and theoretical works; both the zero-degree of organic excitation towards which the death drive aims and the question of water. Sandor Ferenczi's notion of thalassal regression suggests that the desire to return to the tranquility of the maternal womb parallels a response to a traumatic prehistoric extinction event undergone by organic life once forced to abandon its aquatic existence. Through Gaston Bachelard's Water and Dreams: An Essay on the Imagination of Matter, however, one can double the imaginary of water along the axes of a personal death organic life defers and delays, and an impersonal extinction it cannot. Derrida's unpublished 1977 seminar on Blanchot's 1941 novel Thomas the Obscure, however, allows us to imagine an exteriority to extinction, the possibility


2016 ◽  
Author(s):  
Joshua R. Robinson ◽  
◽  
John Rowan ◽  
Christopher J. Campisano ◽  
Jonathan G. Wynn ◽  
...  
Keyword(s):  

2019 ◽  
Author(s):  
Ekaterina Larina ◽  
◽  
David J. Bottjer ◽  
Frank A. Corsetti ◽  
William M. Berelson ◽  
...  

2020 ◽  
Author(s):  
Marisa D. Knight ◽  
◽  
Runsheng Yin ◽  
Clara L. Meier ◽  
James V. Browning ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Beata Grzywacz ◽  
Elżbieta Warchałowska-Śliwa ◽  
Maciej Kociński ◽  
Klaus-Gerhard Heller ◽  
Claudia Hemp

AbstractEast African mountains constitute a network of isolated habitat islands among dry savannah and are thus ideal for studying species diversification processes. This study elucidated the phylogenetic and phylogeographic relationships of all bushcricket species comprising the genus Aerotegmina. Our analysis indicated that large-scale climatic and topographic processes in Africa are likely to have driven speciation in this group, and revealed the cytogenetic traits of the species. Molecular phylogeny supported the monophyly of Aerotegmina and showed that the genus probably originated in the old Eastern Arc Mountains of Tanzania and Kenya. Two lineages were distinguished: small- and large-sized species with geographically distinct habitats. The underlying processes are thought to be eight dispersals, ten vicariance events, and one extinction event linked to repeated fragmentation of the African rainforest. Those processes, in conjunction with habitat change, probably also led to the spatial separation of the species into a northern clade with a diploid number of chromosomes 2n = 32 + X0 or 2n = 30 + neo-XY and a southern clade with a reduced number of chromosomes (2n = 28 + X0 or 24 + neo-X1X2Y). Karyotype analysis suggests that Aerotegmina is currently in the process of speciation.


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