The beginning of the end

• Autores: Chelsea Whyte
• Localización: New scientist, ISSN 0262-4079, Nº. 3104-3106, 2016, págs. 50-52
• Idioma: inglés
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• Resumen

  • Comb jellies are wondrous, magical creatures. Their translucent, spherical bodies are lined with iridescent cilia, which they use to motor around the ocean deep and suck in vast quantities of zooplankton. They are some of the most primitive animals on the planet, closely descended from the common ancestors of all animal life. The surprising thing is that they have an anus. Two, even. Together, these tiny holes are rewriting our understanding of how anuses ever came to be. Here, Whyte discusses why animals lack anus.