Blue whales have very few predators but the ones they do have are powerful. Their main predators are humans. Unfortunately with all of the modern technology that we posess blue whales have a very tough time surviving whaling attacks. At least one instance of an orca attack on a blue whale has been reported although this is extrememly rare.

Female belugas typically give birth to one calf every three years. Gestation lasts 12 to 14.5 months. Newborns are about 1.5 metres (4.9 ft) long, weigh about 80 kilograms (180 lb), and are grey in color. The calves remain dependent on their mothers for at least two years.

Blubber is a main survival tool for them. It helps them stay warm when the water is freezing.

That depends with what you are comparing them to. If you compare them to a jelly fish, yes. But if you compare them to a human, no.

^This answer sucks and whoever wrote it probably doesn't even know what a Beluga whale is. Look up some videos on YouTube of them interacting with people. To compare an animal such as a Jellyfish to a Beluga Whale is pretty idiotic considering jellyfish don't even have brains. In a short answer "yes" Beluga Whales are intelligent social creatures.

It depends on species. A blue whale (Balaenoptera musculus) calf can weigh 6,000-8,000 lbs (2,700-3600 kg), while a minke whale (Balaenoptera acutorostrata) calf may only weigh 700 lbs (320 kg).

No. Because of Hunting & Whaling by humans. Gray Whales have been hunted since the 16th century. Humans have been whaling gray whale species for over 4 decades now. This hunting has significantly reduced the gray whale populations. The north atlantic population of gray whales were totally wiped out due to whaling even before the 19th century. Around 1950, governments worldwide declared the gray whale as an endangered species and banned whaling them

Beluga whales love cold water , they live in sub arctic waters around the world . They move from coastal areas to the open ocean with the freezing and thawing ice . They also tend to stay in deeper waters because it is colder and Beluga whales bottom feed on smaller organisms .

Beluga whales are not dangerous. They live in the Arctic Ocean and eat fish, crustaceans (like crabs and lobsters), and worms. So unless you happen to be one of those three species, you'll be fine.

Source:

National Geographic

Female belugas typically give birth to one calf every three years. Gestation lasts 12 to 14.5 months. Newborns are about 1.5 metres (4.9 ft) long, weigh about 80 kilograms (180 lb), and are grey in color. The calves remain dependent on their mothers for at least two years.

shape, size, color, bone structure, traits

Yes. As members of Cetacea (all whales), they are mammals and thus vertebrates, meaning that they have backbones. Interestingly, narwhals are among only two whales that do not have fused neck vertebrae, the other being belugas.

The beluga can swim forward, backwards and upside down. Being able to swim allows them to escape predations and is one of their many adaptations. Beluga whales deposit most of their body fat into a thick layer of blubber that lies just underneath the skin. Blubber accounts for more than 40% of a beluga whale's weight (Sergeant and Brodie, 1969). This blubber layer insulates the whale and streamlines the body. It also functions as an energy reserve. With no dorsal fin on the back of the beluga whale, it allows it to move more freely under floating ice.

Beluga whales are mainly found in the Arctic and sub-Arctic regions around Russia, Greenland and North America.

Probably 200. No one knows for sure but we DO know that many belugas and great white whales ate insects floating on top of the water, small fishes, crabs, crustaceans, and mollusks.

You can find information about beluga whales on the Internet if you tried!

about 1,800 years

beluga whales do have teeth they have 34 teeth but they do not chew

they have pretty much the same skin as most sea mammals , it like a natural wet suit.

On the IUCN Red List of Endangered Species, they are listed under the classification of "vulnerable". Vulnerable is a subcategory of the status of Threatened of which Endangered and Critically Endangered also fall. They are also listed as Threatened in the US Fish and Wildlife Services' Endangered Species List. The IUCN lists the trend in population as "decreasing" and attribute it mostly to habitat changes caused by melting of the sea ice.

Blue whales are the loudest animals in the world. They communicate by making long low moans that can travel hundreds of miles through the water and last 15-35 seconds. These moans send out information to other whales about danger or about a good food source. Blue whales also communicate with body language and by slapping their tales on the water.

Male Beluga Whales usually live around 35 years in the wild and 45 in captivity.

Female Beluga Whales usually live around 45 years in the wild and 55 in captivity.

The longest living beluga whale recorded was called Mejay and lived at SeaWorld San Antonio and died in 1997 at 87 years old and the record age for the wild is 71 years old made by a female beluga whale.

Hayley Annie and Caleb also known as bratayley Live in Canada

They look like big flat nosed dolphins and are completely white (calves are grey). They are however toothed wales despite being far smaller than most other toothed whales.
The Beluga is a medium-sized whale, that is white. It has a stocky body, with a rounded melon on its head. It has a single blowhole from which it breathes from.

Killer Whales live in salt water. Check out the related link below for more information.