#cornu — Public Fediverse posts on home.social

It's happening, snails on BBC Springwatch! In the end, four days work x 2 BBC staff plus myself as animal wrangler. For 5 minutes of film. #bbcspringwatch #snails #Cornu #UoN https://www.bbc.co.uk/mediacentre/mediapacks/springwatch-2025

#bbcspringwatch #snails #cornu #uon

#Snails are primarily marine #mollusks. According to current hypotheses, the #sistergroup might be #Cephalopoda plus #Scaphopoda (Link below) . One #Apomorphy, i.e. evolutionary new acquisitions of the stemspecies, is the #asymmetrical #shell that is wound in one direction, which is due to a #torsion of the #mantle and visceral sac.
The species in my #photos is #Cornu #aspersum from Italy. #biodiversity,
© #StefanFWirth Berlin 2025

Reference

#snails #mollusks #sistergroup #cephalopoda #scaphopoda #apomorphy

#Snails are primarily marine #mollusks. According to current hypotheses, the #sistergroup might be #Cephalopoda plus #Scaphopoda (Link below) . One #Apomorphy, i.e. evolutionary new acquisitions of the stemspecies, is the #asymmetrical #shell that is wound in one direction, which is due to a #torsion of the #mantle and visceral sac.
The species in my #photos is #Cornu #aspersum from Italy. #biodiversity,
© #StefanFWirth Berlin 2025

Reference

#snails #mollusks #sistergroup #cephalopoda #scaphopoda #apomorphy

#Snails are primarily marine #mollusks. According to current hypotheses, the #sistergroup might be #Cephalopoda plus #Scaphopoda (Link below) . One #Apomorphy, i.e. evolutionary new acquisitions of the stemspecies, is the #asymmetrical #shell that is wound in one direction, which is due to a #torsion of the #mantle and visceral sac.
The species in my #photos is #Cornu #aspersum from Italy. #biodiversity,
© #StefanFWirth Berlin 2025

Reference

#snails #mollusks #sistergroup #cephalopoda #scaphopoda #apomorphy

#Snails are primarily marine #mollusks. According to current hypotheses, the #sistergroup might be #Cephalopoda plus #Scaphopoda (Link below) . One #Apomorphy, i.e. evolutionary new acquisitions of the stemspecies, is the #asymmetrical #shell that is wound in one direction, which is due to a #torsion of the #mantle and visceral sac.
The species in my #photos is #Cornu #aspersum from Italy. #biodiversity,
© #StefanFWirth Berlin 2025

Reference

#stefanfwirth #biodiversity #aspersum #cornu #photos #mantle

#Snails are primarily marine #mollusks. According to current hypotheses, the #sistergroup might be #Cephalopoda plus #Scaphopoda (Link below) . One #Apomorphy, i.e. evolutionary new acquisitions of the stemspecies, is the #asymmetrical #shell that is wound in one direction, which is due to a #torsion of the #mantle and visceral sac.
The species in my #photos is #Cornu #aspersum from Italy. #biodiversity,
© #StefanFWirth Berlin 2025

Reference

#snails #mollusks #sistergroup #cephalopoda #scaphopoda #apomorphy

The #terrestrial #pulmonate #gastropods (#Stylommatophora, Gastropoda) have two pairs of #retractile #tentacles, an #apomorphy (#evolutionary innovation of the stem species) of the higher taxon Euthyneura. The rear pair of tentacles is elongated and has #eyes at its tips.
My photos show them in a close #macro shot using the Mediterranean #snail #species #Cornu #aspersum (#Helicidae).
#biodiversity #evolution
© #StefanFWirth Berlin 2024