Life Sciences Commons^™

Unearthing The Fossorial Tadpoles Of The Indian Dancing Frog Family Micrixalidae, Gayani Senevirathne, Sonali Garg, Ryan R. Kerney, Madhava Meegaskumbura, S. D. Biju

Biology Faculty Publications

Tadpoles of the monotypic Indian dancing frog family Micrixalidae have remained obscure for over 125 years. Here we report the discovery of the elusive tadpoles of Micrixalus herrei from the sand beds of a forested stream in southern Western Ghats, and confirm their identity through DNA barcoding. These actively burrowing tadpoles lead an entirely fossorial life from eggs to late metamorphic stages. We describe their internal and external morphological characters while highlighting the following features: eel-like appearance, extensively muscularized body and tail, reduced tail fins, skin-covered eyes, delayed development of eye pigmentation in early pre-metamorphic stages (Gosner stages 25–29), prominent …

From Clinging To Digging: The Postembryonic Skeletal Ontogeny Of The Indian Purple Frog, Nasikabatrachus Sahyadrensis (Anura: Nasikabatrachidae), Gayani Senevirathne, Ashish Thomas, Ryan R. Kerney, James Hanken, S. D. Biju, Madhava Meegaskumbura

Biology Faculty Publications

The Indian Purple frog, Nasikabatrachus sahyadrensis, occupies a basal phylogenetic position among neobatrachian anurans and has a very unusual life history. Tadpoles have a large ventral oral sucker, which they use to cling to rocks in torrents, whereas metamorphs possess adaptations for life underground. The developmental changes that underlie these shifts in habits and habitats, and especially the internal remodeling of the cranial and postcranial skeleton, are unknown. Using a nearly complete metamorphic series from free-living larva to metamorph, we describe the postembryonic skeletal ontogeny of this ancient and unique monotypic lineage. The torrent-dwelling larva possesses a dorsoventrally flattened …

Long-Term Recovery From Acute Cold Shock In Caenorhabditis Elegans, Joseph D. Robinson, Jennifer R. Powell

Biology Faculty Publications

Background

Animals are exposed to a wide range of environmental stresses that can cause potentially fatal cellular damage. The ability to survive the period of stress as well as to repair any damage incurred is essential for fitness. Exposure to 2 °C for 24 h or longer is rapidly fatal to the nematode Caenorhabditis elegans, but the process of recovery from a shorter, initially non-lethal, cold shock is poorly understood.

Results

We report that cold shock of less than 12-hour duration does not initially kill C. elegans, but these worms experience a progression of devastating phenotypes over the …

The History And Influence Of Maria Sibylla Merian's Bird-Eating Tarantula: Circulating Images And The Production Of Natural Knowledge, Kay Etheridge

Biology Faculty Publications

Chapter Summary: A 2009 exhibition at the Fitzwilliam Museum on the confluence of science and the visual arts included a plate from a nineteenth-century encyclopedia owned by Charles Darwin showing a tarantula poised over a dead bird (figure 3.1).1 The genesis of this startling scene was a work by Maria Sibylla Merian (German, 1647–1717), and the history of this image says much about how knowledge of the New World was obtained, and how it was transmitted to the studies and private libraries of Europe, and from there into popular works like Darwin’s encyclopedia. It is unlikely that Merian ever imagined …

Review Of "Eye Of Newt And Toe Of Frog, Adder’S Fork And Lizards’ Leg, The Lore And Mythology Of Amphibians And Reptiles", Kay Etheridge

Biology Faculty Publications

A review of Marty Crump's book on the folklore surrounding reptiles and amphibians. Crump's book is a collection of tales and myths both ancient and contemporary, and a fascinating analysis of how humans perceive and sometimes revere snakes, frogs and other "loathsome" creatures.

The Biology Of Metamorphosis Insectorum Surinamensium, Kay Etheridge

Biology Faculty Publications

Book Description: This facsimile of one of the most beautiful books of natural history ever created contains sixty magnificent illustrations showing exotic insects, with the original descriptions. The reissue is the same size as the original and is enriched with an illustrated introduction about the life, work and significance of Maria Sibylla Merian, and a new scientific description of all the insects, animals and plants.

The life and work of this German woman who moved to the Netherlands has been the subject of international research by botanists, entomologists and historians concerned with the history of science, art, religion and economics. …