Sunday 1 May 2016

Haematophagy


 Haematophagy


From Wikipedia


Classification
By mode of ingestion
There are many modes of feeding that animals exhibit, including:
  • Filter feeding: obtaining nutrients from particles suspended in water
  • Deposit feeding: obtaining nutrients from particles suspended in soil
  • Fluid feeding: obtaining nutrients by consuming other organisms' fluids
  • Bulk feeding: obtaining nutrients by eating all of an organism
  • Ram feeding and suction feeding: ingesting prey via the fluids around it.
By mode of digestion
  • Extra-cellular digestion: excreting digesting enzymes and then reabsorbing the products
  • Myzocytosis: one cell pierces another using a feeding tube, and sucks out cytoplasm
  • Phagocytosis: engulfing food matter into living cells, where it is digested
By food type
"Polyphagy" redirects here. For increased appetite as a medical symptom, see polyphagia.
Polyphagy is the ability of an animal to eat a variety of food, whereas monophagy is the intolerance of every food except of one specific type (see generalist and specialist species).
Another classification refers to the specific food animals specialize in eating, such as:
The eating of non-living or decaying matter:
There are also several unusual feeding behaviours, either normal,opportunistic, or pathological, such as:
An opportunistic feeder sustains itself from a number of different food sources, because the species is behaviourally sufficiently flexible.
Storage behaviours
Some animals exhibit hoarding and caching behaviours in which they store or hide food for later use.
Others
Alcohol—it is widely believed that some animals eat rotting fruit for this to ferment and make them drunk, however, this has been refuted in the case of at least elephants.[2]
See also
References
  1. Jump up^ Sahney, S., Benton, M.J. & Falcon-Lang, H.J. (2010). "Rainforest collapse triggered Pennsylvanian tetrapod diversification in Euramerica" (PDF). Geology 38 (12): 1079–1082.doi:10.1130/G31182.1.
  2. Jump up^ Bakalar, N. (2005). "Elephants drunk in the wild? Scientists put the myth to rest". Retrieved May 24, 2013.

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