Meeting Abstract 5-3  Saturday, Jan. 4 08:30 – 08:45  Taking a swing at measuring small-scale, high acceleration impacts: a novel two-pendulum approach JORGE, J*; PATEK, SN; Duke University; Duke University jfj7@duke.edu Impact dynamics underlie many biological motions including prey capture and locomotion. Oftentimes, the size and time scale of these impacts allow for measurement with force transducers, […]

Meeting Abstract 5-4  Saturday, Jan. 4 08:45 – 09:00  Shattering raindrops on biological surfaces (insect wings, bird feathers) JUNG, SJ*; KIM, S; WU, B; DOMBROSKIE, J; Cornell University; Cornell University; Cornell University; Cornell University sj737@cornell.edu https://blogs.cornell.edu/sunnyjsh/ Many biological surfaces (e.g. bird feathers, insect wings, and plant leaves) are super-hydrophobic with physical morphology at different scales. However, it […]

Meeting Abstract 5-2  Saturday, Jan. 4 08:15 – 08:30  Resonance Properties of Insect-Inspired Series-Elastic Flapping Wings LYNCH, J*; GAU, JF; SPONBERG, S; GRAVISH, N; University of California, San Diego; Georgia Institute of Technology; Georgia Institute of Technology; University of California, San Diego jelynch@ucsd.edu Flying insects are thought to achieve energy-efficient flapping flight by storing and releasing elastic […]

Meeting Abstract 5-5  Saturday, Jan. 4 09:00 – 09:15  Metabolic costs of enhancing propulsion in live biohybrid robotic jellyfish XU, NW*; DABIRI, JO; Stanford University; California Institute of Technology nicolexu@stanford.edu http://web.stanford.edu/~nicolexu Robotic control of animal locomotion can potentially address questions about organismal biology and animal-fluid interactions, which are otherwise limited to observations of natural behavior. This work […]

Meeting Abstract 5-7  Saturday, Jan. 4 09:30 – 09:45  Energetic costs of locomotion and feeding in capuchin primates. ROSS, CF*; LAIRD, MF; GRANATOSKY, MC; University of Chicago; University of Southern California; New York College of Osteopathic Medicine rossc@uchicago.edu It is often assumed that natural selection minimizes energetic expenditure during cyclical feeding and locomotion so that energy might […]

Meeting Abstract 5-1  Saturday, Jan. 4 08:00 – 08:15  Animals and robots transition from more challenging to easier locomotor modes to traverse obstacles OTHAYOTH, R*; THOMS, G; LI, C; Johns Hopkins University ratan@jhu.edu https://li.me.jhu.edu/ Animals transition between multiple locomotor modes when traversing obstacles in complex terrain. However, the physics of such locomotor transitions are not well understood. […]

ANDERSON, F.E.*; FOSTER, P.G.: Tests of ecdysozoan monophyly using molecular sequence data Some analyses of 18S ribosomal RNA sequence data have supported monophyly of Ecdysozoa, a superphylum composed of taxa that possess periodically molted chitinous cuticles (e.g., Arthropoda, Onychophora, Priapula and Nematoda). The Ecdysozoa hypothesis already has been accepted by many researchers, and this hypothesis […]

Stach, T.*; Turbeville, J. M.: Reconstruction of tunicate phylogeny using molecular and morphological data The phylogeny of the Tunicata and ascidian families within the Tunicata was reconstructed using molecular and morphological evidence. Mitochondrial cytochrome oxidase I (COI) and 18S rDNA sequences of 15 tunicate species were obtained and aligned with gene sequences of cephalochordates and […]

Guralnick, R.P.: Reconnecting cell and animal lineages: A synthetic approach to Spiralian evolution and development Tracing the timing, position, and directionality of all the cell divisions from zygote up to late development is the study of cell lineages. During the late nineteenth and early twentieth century, American biologists at Woods Hole pioneered studies of cell […]

MCFADDEN, C.S.*; TULLIS, I.; HUTCHINSON, M.B.; WINNER, K.: Rates of Evolution of Cnidarian Mitochondrial Genes Molecular phylogenetic and phylogeographic studies of cnidarians have been hampered by the apparently slow rate of mitochondrial gene evolution in this group. Genes such as COI, routinely used for population-level studies of other invertebrates, are often virtually invariant among congeneric […]