The brain performs visual search near optimally
In the wild, mammals survive because they can see and evade predators lurking in the shadowy bushes.
May 8, 2011
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In the wild, mammals survive because they can see and evade predators lurking in the shadowy bushes.
May 8, 2011
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A new UC Davis study shows how the brain reconfigures its connections to minimize distractions and take best advantage of our knowledge of situations.
Jan 12, 2012
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Imagine walking alone at night. Up ahead on the sidewalk, you notice a person lurking in the shadows, and a chill runs down your spine. You pause as you run through your options. Do you turn around and go back the way you ...
Mar 6, 2018
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Researchers at UC San Francisco and the University of Queensland have discovered a scorpion toxin that targets the "wasabi receptor," a chemical-sensing protein found in nerve cells that's responsible for the sinus-jolting ...
Aug 22, 2019
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The odor of bobcat urine, if you ever get a chance to take a whiff, is unforgettable—like rotten meat combined with sweat, with something indescribably feral underlying it. To humans, it's just nose-wrinklingly disgusting.
Mar 21, 2016
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Animals use their noses to focus their sense of smell, much the same way that humans focus their eyes, new research at the University of Chicago shows.
Oct 30, 2012
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Whether conscious of it or not, when entering a new space, we use our sense of smell to assess whether it is safe or a threat. In fact, for much of the animal kingdom, this ability is necessary for survival and reproduction. ...
Jan 24, 2023
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Innate fear is an essential emotion for animals to avoid danger in a severe natural environment. Rodents kept in a laboratory also show instinctive fear behavior against the smell of predators such as foxes, cats or snakes ...
May 21, 2018
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The life of the tiny worm called Caenorhabditis elegans consists mostly of looking for food, eating food, and laying eggs. So, when any of these behaviors are disrupted, there's cause for concern. In a new study, Salk Institute ...
Jul 13, 2023
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A new University of New Hampshire study challenges the view that online predators are a distinctly dangerous variety of sex offender, requiring special programs to protect youth.
Aug 6, 2013
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In ecology, predation describes a biological interaction where a predator (an organism that is hunting) feeds on its prey, (the organism that is attacked). Predators may or may not kill their prey prior to feeding on them, but the act of predation always results in the death of the prey. The other main category of consumption is detritivory, the consumption of dead organic material (detritus). It can at times be difficult to separate the two feeding behaviors, for example where parasitic species prey on a host organism and then lay their eggs on it for their offspring to feed on its decaying corpse. The key characteristic of predation however is the predator's direct impact on the prey population. On the other hand, detritivores simply eat what is available and have no direct impact on the "donor" organism(s).
Selective pressures imposed on one another has led to an evolutionary arms race between prey and predator, resulting in various antipredator adaptations.
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