breathe through gills
51Arthropod — Temporal range: 540–0 Ma …
52Chelicerata — Temporal range: 445–0 Ma …
53Death Adder (comics) — Death Adder Death Adder. Art by Rick Bryant. Publication information Publisher Marvel Comics …
54Insect evolution — The relationships of insects to other animal groups remain unclear. Although more traditionally grouped with millipedes and centipedes, evidence has emerged favouring closer evolutionary ties with the crustaceans. In the Pancrustacea theory,… …
55List of alien races in Marvel Comics — There are several different extraterrestrial races in the Marvel Comics universe. The vast majority are humanoid in structure.Major RacesA few alien races have had considerable air time in various Marvel Comics publications over the years, having …
56Frog zoology — Introduction to phylumAround 400 million years ago, some members of the sarcopterygian group of fish moved onto land. These became the first amphibians. Today, these animals still spend part of their lives in water and return to water for… …
57List of Pokémon (152–201) — Contents 1 Chikorita 2 Bayleef 3 Meganium 4 Cyndaquil …
58Aquaman — Arthur Curry redirects here. For the Canadian military general, see Arthur Currie. Aquaman redirects here. For the TV program, see Aquaman (TV program). Aquaman Art by Alex Ross …
59chondrichthian — /kon drik thee euhn/, n. any member of the class Chondrichthyes, comprising the cartilaginous fishes. [ < NL, equiv. to chondr CHONDR + Gk ichthýes (pl.) fish] * * * ▪ fish class Introduction class name Chondrichthyes, or Selachii any… …
60Shark — Taxobox name = Shark fossil range = Late Devonian Recent image width = 250px image caption = Grey reef shark, Carcharhinus amblyrhynchos regnum = Animalia phylum = Chordata subphylum = Vertebrata classis = Chondrichthyes subclassis =… …
