News tagged with prey
Zooarchaeological study indicating hominids already practiced sophisticated hunting techniques in East Asia
More than ten thousands of bone fragments were recovered from the Lingjing site, Henan Province during 2005 and 2006. By taking statistical analyses of the skeletal elements of the two predominant species ...
Other Sciences / Archaeology & Fossils
May 23, 2012 |
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Bats: What sounds good doesn't always taste good
Bats use a combination of cues in their hunting sequence - capture, handling and consumption - to decide which prey to attack, catch and consume and which ones they are better off leaving alone or dropping ...
May 21, 2012 |
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Movement patterns of endangered turtle vary from Pacific to Atlantic
The movement patterns of critically endangered leatherback turtles vary greatly depending on whether the animals live in the North Atlantic or the Eastern Pacific, with implications for feeding behavior and ...
May 16, 2012 |
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Big-mouthed babies drove the evolution of giant island snakes
Some populations of tiger snakes stranded for thousands of years on tiny islands surrounding Australia have evolved to be giants, growing to nearly twice the size of their mainland cousins. Now, new research ...
May 15, 2012 |
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Carnivorous plants rely on the services and wastes of a symbiotic ant for nutrition
In a mutualistic relationship between an ant species and a carnivorous plant, the ants contribute to both prey capture and prey digestion of their host-plant and provide significant amounts of nutrients derived from their ...
May 09, 2012 |
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How the pufferfish got its beak
The origin of the unusual beak of pufferfishes has been discovered, giving new clues about how such unique structures can evolve, scientists report today.
May 07, 2012 |
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Escalating arms race: Predatory sea urchins drive evolution
(Phys.org) -- Nature teems with examples of evolutionary arms races between predators and prey, with the predator species gradually evolving a new mode of attack for each defensive adaptation that arises in ...
Apr 17, 2012 |
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Hawks win, doves pay for being odd
(Phys.org) -- In a crowd, looking different can be dangerous, at least if you’re a pigeon.
Apr 13, 2012 |
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Electric fish charges up research on animal behavior
An electric eel can generate enough current to stun its prey, just like a Taser. Weakly electric fish can also generate electricity, but not enough to do any harm. "Weakly electric fish are unique in that they produce and ...
Apr 10, 2012 |
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Task force recommends reducing global harvest of 'forage fish'
A task force that conducted one of the most comprehensive analyses of global "forage fish" populations issued its report this week, which strongly recommends implementing more conservative catch limits for these crucial prey ...
Apr 03, 2012 |
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Megalara garuda: the King of Wasps
A new and unusual wasp species has been discovered during an expedition to the Indonesian island of Sulawesi.
Mar 23, 2012 |
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Clash of the crayfish: Why the Americans are winning
Aggressive American signal crayfish are threatening Britain's native white-clawed crayfish populations because they have better resistance to parasites and are less fussy about what they eat.
Mar 15, 2012 |
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Better understanding of triangular hormonal relationship between crop, fungus and parasite
Parasitic plants ruin crops and threaten the food production for some three hundred million people not only in Africa, but also elsewhere in the world. Developing crops are increasingly falling prey to these ...
Mar 08, 2012 |
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Seeing without eyes: Hydra stinging cells respond to light
In the absence of eyes, the fresh water polyp, Hydra magnipapillata, nevertheless reacts to light. They are diurnal, hunting during the day, and are known to move, looping end over end, or contract, in res ...
Mar 04, 2012 |
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Climate change study warns against one-off experiments
(PhysOrg.com) -- Climate change research conducted by the University of Aberdeen and Marine Scotland Science highlights the risks of conducting an experiment only once.
Feb 22, 2012 |
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Predation
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.
For more information about Predation, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
