title: Developmental biology: Serpent clocks tick faster.
authors.forename: Freek J
authors.initials: FJ
authors.lastname: Vonk
authors.forename: Michael K
authors.initials: MK
authors.lastname: Richardson
mesh_terms: D000818:Animals; D019521:Body Patterning / Q000502:physiology*; D051379:Mice; D012911:Snakes / Q000196:embryology*; D019170:Somites / Q000196:embryology*; D013997:Time Factors