Black bears, like brown and Asiatic black bears and many other carnivores, have a prolonged gestation period resulting from an arrest in embryonic development or "delayed implantation". After mating, the fertilized egg develops into a minute ball of cells or "blastocyst", at which time development stops and the blastocyst remains unattached in the uterus. If the female attains a minimum weight in the fall, usually about 150 lbs.

to 23 days. She will not begin to show her pregnancy until the third week, and will not be interested in nest building until the day before or the day she gives birth. Pregnancy and nursing require a lot of nutrients. A good quality dry kitten food, such as Iams and Nutro, will give her the extra protein and fat her body needs at this time. Be sure she also has plenty of her normal diet and water available at all times. See similar questions...

A normal llama pregnancy can vary quite a bit and still result in a full-term cria (cria = baby llama). The average full-term pregnancy is 11.5 months, but can vary from 10.5 to 13 months. See similar questions...

Females usually have one calf every three years. Gestation (pregnancy) is about 13 months. Most calves are born during August. See similar questions...

Panda gestation length ranges from three to five months, or 90 to 160 days, with an average pregnancy lasting 135 days. This two-month variation in gestation occurs because the fertilized panda egg usually floats free in the mother's uterus before it implants and begins developing. Once the embryo is attached to the uterine wall, its development continues until a panda is born; newborn pandas are blind, very small and without almost any fur. A newborn panda is about three to five ounces. See similar questions...

The gestation period is 11-1/2 months (350 days average). The tendency is to go a bit longer for spring births, and shorter for autumn births. Llamas can control the time of birth +- a week or two. 98% of llamas are born during daylight hours, typically midmorning. See similar questions...

Black Bear Adventures has been in business and operating bicycle tours for 6 years. We are a small family owned business and you will always deal directly with the owners of the company. See similar questions...

The average gestation period is 11.5 months, but pregnancies that go for over a year are not uncommon. Births are generally trouble-free and most occur before the middle of the day. Cria should be 12 - 20 pounds at birth and most will be on their feet and nursing within 2 to 3 hours. The mothers are often very protective and the cria will stay with its mother until weaning at 5 to 6 months of age. See similar questions...

The normal length of time it takes for a pregnancy is 59-65 days, with 63 days being the average. Dogs have an interesting way for predicting when they will deliver that no other species has. We suggest checking rectal temperatures on a pregnant dog 1 week before she is due to deliver. When the temperature drops to 99.0 or below, she should deliver within 12-24 hours. If she doesn't, then she should be examined by a veterinarian. Cats do not have this predictability. See similar questions...

Attacks or threatened "bluff" attacks in campgrounds, along roadsides, or similar developed areas usually occur because people are too close to the bear, or because the bear wants the person's food items. Backing away while keeping an eye on the bear usually addresses the animal's concern about your proximity to it. If the bear is persistent in its attempts to get your food, it is best to comply. Report the bear's behavior to officials. See similar questions...

No. There is no gestation period. Reproduction and birth are immediate. The real gestation and sexual maturity periods are compensated for in the game by the birth rate. See similar questions...

All DVDs are shipped via the U.S. Postal Service. Columbia House says you should receive your introductory package in three to four weeks. Our experience has been that it can often take far less than that – sometimes as little as two weeks. Once you’re a member, you can see the status of any pending order by checking your account information when you visit the members-only website at colombiahouse.com. See similar questions...

lt;Any time mollies, platys, guppies (i.e., livebearers) are kept in a community tank there's a pretty good likelihood that the girls will be pregnant - these fish reproduce almost exponentially, or so it seems.> lt;Let me ask how large the tank currently is, and what fish are housed in it? If the tank is large enough and has enough cover (plants, decor, etc.) for the birthing mom and her new babies to hide in, it's perfectly OK to allow the female to give birth where she is. See similar questions...

The rule is one inch of fish per gallon for fresh water...so that's five inches of fish for a five gallon tank. Hello, I am writing for my mother, we have a 33 gallon fish tank and the water is kind of a greenish yellow tint. We are not experts at tanks even though we have had fish for about eight years. Please help us because she is driving me crazy with this thing. PS we have tropical fish and they are in tep water.---Tubagirl Add some activated charcoal to your filtration. See similar questions...

The average gestation period for a whitetail deer is 200 days. But, just like people, this time period can vary from 183 to 208 days. Thus, assuming that a doe is bred on November 14, the expected birth date is June 2. This is why biologists always say that a doe will drop her fawns near the end of May to the beginning of June. This concides with the time that native vegatation is most succulent and nutritious. See similar questions...

Over 30,000 have been sponsored since 1994. Over 4,000 children are waiting on our “Kid’s List” to receive a Spinoza Bear of their own. See similar questions...

I sit in my chair in front of my computer and work, that’s what I do. I have a job and deadlines. I review what I did last time I worked, and polish it. I write odd little bits that people ask for – interviews via email, book jacket material, letters to my readers for the publisher, and so on. The Femme Fatale newsletter. Emails. And somehow, the pump gets primed, and I start working again. See similar questions...

We offer lessons on our boat or on yours. We also offer a discount for lessons taught on your boat. Please check out our different packages for more info. See similar questions...