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Pig names are used in idioms and animal epithets, often derogatory, since pigs have long been linked with dirtiness and greed, [145] [146] while places such as Swindon are named for their association with swine. [147] The eating of pork is forbidden in Islam and Judaism, [148] but pigs are sacred in some other religions. [149] [150]
These pigs are not bred and killed for this purpose, but are extracted from the deceased sow's uterus. Fetal pigs not used in classroom dissections are often used in fertilizer or simply discarded. [1] Fourthly, fetal pigs are easy to dissect because of their soft tissue and incompletely developed bones that are still made of cartilage. [2]
Pet breeds live an average of four to five years but may live as long as eight years. [37] According to Guinness World Records, as of 2006, the longest-lived guinea pig was 14 years, 10 months, and 2 weeks old. [38] Most guinea pigs have fur, but one laboratory breed adopted by some pet owners, the skinny pig, is mostly furless.
[11] [12] The wild boar has a long history of association with humans, having been the ancestor of most domestic pig breeds and a big-game animal for millennia. Boars have also re-hybridized in recent decades with feral pigs; these boar–pig hybrids have become a serious pest wild animal in the Americas and Australia.
Pigs do not hunt, but will readily eat carrion, eggs, and other animal foods that they can find. As livestock, pigs were once fed all manner of mixed household food scraps (called "slops"), but on large modern farms are now fed mostly corn and soybean meal [ 16 ] with a mixture of vitamins and minerals added.
On average, domestic rabbits can live to be between 8 and 12 years old, says Blue Cross, a British animal welfare nonprofit. The oldest recorded domestic rabbit lived to be 18 years and 10 months ...
A litter is the live birth of multiple offspring at one time in animals from the same mother and usually from one set of parents, particularly from three to eight offspring. The word is most often used for the offspring of mammals , but can be used for any animal that gives birth to multiple young.
Typically large numbers of eggs are laid at one time (an adult female cod can produce 4–6 million eggs in one spawning) and the eggs are then left to develop without parental care. When the larvae hatch from the egg, they often carry the remains of the yolk in a yolk sac which continues to nourish the larvae for a few days as they learn how ...