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  1. No Access

    Article

    Object permanence in lemurs

    Object permanence, the ability to mentally represent objects that have disappeared from view, should be advantageous to animals in their interaction with the natural world. The objective of this study was to e...

    Anja M. Deppe, Patricia C. Wright, William A. Szelistowski in Animal Cognition (2009)

  2. No Access

    Article

    Influence of puffer predation on vertical distribution of mangrove littorinids in the Gulf of Nicoya, Costa Rica

    The eastern Pacific puffer fish Sphoeroides rosenblatti (family Tetraodontidae) preys on the mangrove periwinkles Littorariafasciata and L. varia up to 13 cm above the water surface. Puffers capture snails by ju...

    R. Scot Duncan, William A. Szelistowski in Oecologia (1998)