title: Hitching a lift hydrodynamically--in swimming, flying and cycling.
abstract: Swimming animals set the water around them moving, and flying animals generate air movements. Other animals traveling with them can save energy by exploiting these movements of the fluid medium; similarly, a cyclist can save energy by riding close behind another. A new study of dolphin mothers and calves exemplifies the advantages of moving in concert.
authors.affiliation: School of Biology, University of Leeds, Leeds LS2 9JT, UK. r.m.alexander@leeds.ac.uk
authors.forename: R McNeill
authors.initials: RM
authors.lastname: Alexander
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000502:physiology*; D001642:Bicycling / Q000502:physiology*; D004289:Dolphins / Q000502:physiology*; D006801:Humans; D009035:Mothers; D013550:Swimming / Q000502:physiology*