Cave fights for food: voracious spiders vs assassin bugs

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  • January 22, 2020
  • Adult specimens of Zelurus diasi (left) and Enoploctenus cyclotorax (right) observed in the study area.

    Killing and eating of potential competitors has rarely been documented in the zoological literature, even though this type of interaction can affect population dynamics. In a recent publication in the open-access journal Subterranean Biology, Brazilian scientists presented their notes regarding the predation of an assassin bug by a spider in Neotropical caves. Underground, where food resources are scarce, such events might be possible as a result of ecological pressures imposed by the hostile environment, hypothesise the researchers.

    Two fish a day keep the mantid coming back to prey: The 1st fishing praying mantis

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  • September 20, 2018
  • Commonly known to predate on insects, praying mantises have occasionally been observed to feed on vertebrates, including small birds, lizards, frogs, newts, mice, snakes and turtles. Mostly, such records have either not been scientifically validated or have occurred under induced and human-manipulated circumstances. Nevertheless, no scientific data of mantises preying on fish existed until the […]

    First description and video of a rainbow boa preying on a vampire bat in a cave in Ecuador

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  • October 4, 2016
  • While snakes are well-known enemies to bats, their preying on the winged mammals has hardly been recorded. Furthermore, no bat as big and heavy as the common vampire, has been described being killed and eaten prior to the present study, published in the open access journal Subterranean Biology. The study, where scientists, led by Sarah […]