Animal Reproduction

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According to the World Wildlife Fund, there are more than 20,000 southern white rhinos in the world, but only four northern white rhinos, as of 2014. The majority of these two subspecies, which are genetically different, live in South Africa, Namibia, Zimbabwe and Kenya.

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  • How do snakes reproduce?

    Q: How do snakes reproduce?

    A: Some snakes reproduce by laying eggs while other species give birth to live young. How snakes reproduce depends on the species and also the location. In cooler regions of the world, snakes reproduce only in spring and summer, while in warm regions they may reproduce all year long.
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  • How many days does it take a turkey egg to hatch?

    Q: How many days does it take a turkey egg to hatch?

    A: Turkey eggs hatch between 25 and 31 days after being laid. Turkeys lay between 4 and 17 eggs once per year. They can breed within their first year, but males typically do not because they must compete for mates with older males.
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  • What animal has the largest litter?

    Q: What animal has the largest litter?

    A: The common tenrec — a hedgehog-like creature from Madagascar — produces the largest litters among mammals. The average litter of this small animal includes approximately 18 young, but litters up to 32 have been recorded. Tiger snakes also produce very large litters; the largest ever recorded contained 126 baby snakes.
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  • How many white rhinos are left in the world?

    Q: How many white rhinos are left in the world?

    A: According to the World Wildlife Fund, there are more than 20,000 southern white rhinos in the world, but only four northern white rhinos, as of 2014. The majority of these two subspecies, which are genetically different, live in South Africa, Namibia, Zimbabwe and Kenya.
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  • How often do rabbits mate?

    Q: How often do rabbits mate?

    A: Rabbits in the wild mate continuously throughout their breeding season, which lasts from February through September. Female rabbits ovulate after they mate and are considered to be constantly fertile.
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  • Which animals lay eggs?

    Q: Which animals lay eggs?

    A: Birds lay eggs, although there are other egg-laying animals, including two mammals: the duckbill platypus and the echidna. These two creatures are natives of Australia. Scientists call these primitive egg-laying mammals monotremes.
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  • How do peacocks mate?

    Q: How do peacocks mate?

    A: During the mating season, the male peacocks use their colorful feathers to attract the female peahens. The males use their feathers to form a large train that is then maneuvered in courtship displays. The peahens choose peacocks depending on the color, size and quality of the feather trains.
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  • How do I know when my dog is ready to give birth?

    Q: How do I know when my dog is ready to give birth?

    A: There are a number of behavioral signs that a dog is ready to give birth, including a loss of appetite and restlessness. A pregnant dog will lose interest in food about 24 hours before delivering her puppies, according to PetMD.
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  • What are the parts of an egg?

    Q: What are the parts of an egg?

    A: The parts of an egg include the shell, the inner and outer membranes, the air cell, the albumen, the chalazae, the vitelline membrane, the yolk and the germinal disc. The shell is hard and porous and serves as a protective layer that allows gases to be transferred in and out of the egg.
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  • What is the cause of phantom pregnancy in dogs?

    Q: What is the cause of phantom pregnancy in dogs?

    A: According to PetMD, phantom pregnancy in dogs, also known as false pregnancy or pseudopregnancy, is most likely caused by hormonal imbalances, especially of progesterone and prolactin. The female dog starts showing pregnancy symptoms or begins lactating within a month or two after her latest heat cycle (estrus) concludes.
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  • How do insects reproduce?

    Q: How do insects reproduce?

    A: Depending on the species, insects may reproduce either sexually or asexually. Sexual reproduction requires one egg from a female and a sperm from a male. The sperm fertilizes the egg, which resides in the female through its term to hatch insects when the growth and development stage is complete.
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  • What are some animals without tails?

    Q: What are some animals without tails?

    A: There are countless animals without tails, and all of them fall under the category of "invertebrates." Invertebrates are animals that don't have backbones (and therefore don't have tails either). Some examples include centipedes, insects, grasshoppers, butterflies, snails, octopuses, spiders, worms and scorpions.
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  • What is the difference between spay and neuter?

    Q: What is the difference between spay and neuter?

    A: Spaying and neutering are both procedures used to sterilize animals like dogs and cats, but spaying refers to the procedure done to female animals while neutering is the corresponding process for males. Spaying involves taking out the uterus and ovaries while male pets are neutered by taking out the testicles.
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  • What is a baby fox called?

    Q: What is a baby fox called?

    A: A baby fox is called a kit, a pup or a cub, and at birth he resembles a puppy, with a short nose and ears and brown fur. A baby fox grows rapidly and reaches adult size around 6 months of age.
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  • What is a baby goat called?

    Q: What is a baby goat called?

    A: According to Goat World, a baby goat is called a kid. A kid is considered any baby goat under 6 months of age. The term is used for both male and female goats.
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  • How many tigers are left in the world?

    Q: How many tigers are left in the world?

    A: As few as 3,200 tigers remain in the world as of March 2014. At the beginning of the 20th century, there were 100,000 tigers worldwide. This means that the number of tigers in the wild has dropped approximately 97 percent in the past century.
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  • How do peacocks give birth?

    Q: How do peacocks give birth?

    A: Peacocks do not give birth because they are the males of the species. It is the females, which are called peahens, who give birth by laying eggs.
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  • What problems are there in hybrid animals?

    Q: What problems are there in hybrid animals?

    A: On an individual level, hybrid animals sometimes have reproductive, health or behavioral issues due to their genetics. Ecologically, hybrids blur the lines of species and pose problems for conservation.
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  • How long do kangaroos live?

    Q: How long do kangaroos live?

    A: Kangaroos may live anywhere from nine to 22 years on average. The life span of a kangaroo depends on the species and whether the animal lives in the wild or in captivity.
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  • How do polar bears reproduce?

    Q: How do polar bears reproduce?

    A: Polar bears reproduce via internal fertilization, with one male mating with several females during the mating season, staying with each for their three-day period of fertility. Mating occurs between late winter and early spring, after which gestation lasts anywhere between 195 and 265 days due to the females' ability to delay fetal development. Litter sizes range from one to four cubs but average two cubs per litter.
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  • What animal has the biggest brain?

    Q: What animal has the biggest brain?

    A: The sperm whale is the animal with the largest brain, which weighs about 18 pounds. The mature adult brain of the sperm whale can grow to a size of approximately 500 cubic inches. Its brain mass is only 0.02 percent of its entire body mass.
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