TwoMaleAdders
Description:
Description: Two male Adders (Vipera berus) in close synchronization at the start of the mating season. Date: 26 March 2006. Source: Own work. Author: Piet Spaans.
Included On The Following Pages:
- Life
- Cellular
- Eukaryota (eukaryotes)
- Opisthokonta (opisthokonts)
- Metazoa (animals)
- Bilateria
- Deuterostomia (deuterostomes)
- Chordata (Chordates)
- Vertebrata (vertebrates)
- Gnathostomata (jawed fish)
- Osteichthyes
- Sarcopterygii (Lobe-finned fishes)
- Tetrapoda (terrestrial vertebrates)
- Amniota
- Reptilia (Reptiles)
- Diapsida (diapsid)
- Lepidosauromorpha
- Lepidosauria (lepidosaur)
- Squamata (lizards and snakes)
- Serpentes (snakes)
- Alethinophidia
- Viperidae (vipers)
- Viperinae
- Vipera
- Vipera berus (Adder)
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Source Information
- license
- cc-by-sa-3.0
- copyright
- Piet Spaans
- creator
- Piet Spaans
- original
- original media file
- visit source
- partner site
- Wikimedia Commons
- ID
