Search results
slidetodoc.com
- Polar: When atoms with various electronegativities share electrons to form a covalent bond, the result is a polar covalent bond. Polar bonds have a high melting point, surface tension, boiling point and low vapour pressure. Polar molecules interact with other polar substances. These molecules have positive and negative charges on opposite ends.
byjus.com/chemistry/difference-between-polar-and-non-polar/Difference Between Polar and Nonpolar in Tabular Form - BYJU'S
People also ask
What are some cool facts about polar bears?
Are polar bears real?
Why are polar bears important?
Is a polar bear a carnivore?
1. Polar bears are classified as marine mammals. Because they spend most of their lives on the sea ice of the Arctic Ocean depending on the ocean for their food and habitat, polar bears are the only bear species to be considered marine mammals. © Jon Aars / Norwegian Polar Institute / WWF-Canon.
- A Powerful Predator on Ice
Polar bears live in the frozen Arctic landscape, the...
- Tracking Polar Bears
The best estimate is from 22,000 to 31,000 – but while we...
- Adopt a Polar Bear
Donations from polar bear adoptions go both directly to...
- A Powerful Predator on Ice
Feb 27, 2019 · It’s International Polar Bear Day and you know what that means—a perfect excuse to celebrate and learn new things about polar bears! Although we’re sure you already know the basics on this charismatic species, we’re here to answer the most commonly asked questions about polar bears.
- Overview
- Polar Bears
- Adaptation
- Hunting Skills
- Birth & Family Life
This article is about polar bears and provides ten interesting facts about them, including their habitat, size, adaptation to the environment, hunting habits, fur color and cubs. It also mentions that they are vulnerable due to climate change.
The article provides 10 facts about polar bears, including their habitat, size and weight, adaptation to the environment, hunting skills and cubs. They are vulnerable due to climate change.
Polar bears have thick fur and a layer of fat called blubber that protects them from the cold air and water in the Arctic. They also have black skin under their coat which helps absorb sun rays for warmth.
Polar bears use their excellent sense of smell to track seals as prey up to 16km away; they swim well but hunt mainly on ice platforms near seal breathing holes or at the edge of ice.
Female polar bears give birth in snow dens where family is protected from harsh environment; cubs stay with mother for 2 years learning survival skills in Arctic.
- There are fewer than 26,000 polar bears left. Polar bears live in the Arctic in the northernmost parts of the world. There are 19 subpopulations of polar bears that live across North America and Eurasia.
- Polar bears are not white. Polar bears have two layers of fur; the shorter undercoat and longer guard hairs. An often overlooked fact is that these hairs are translucent, however, they reflect sunlight which makes polar bears look white (source: WWF).
- They often share food with arctic foxes. Polar bears tend to eat animals with lots of fatty blubber which is why they prefer marine mammals. Generally, they do not eat arctic foxes and often (unwillingly) share food with them.
- Only pregnant females hibernate. Polar bears do not hibernate like other species of bear, this is because they spend winter on the sea ice hunting seals and building up their fat reserves for summer which is spent on the mainland or small archipelagos in the arctic.
5 days ago · Polar bear, great white northern bear found throughout the Arctic region. The polar bear is the largest and most powerful carnivore on land, a title it shares with a subspecies of brown bear called the Kodiak bear. It has no natural predators and knows no fear of humans, making it an extremely dangerous animal.
- The Editors of Encyclopaedia Britannica
Get to know the bears and explore our polar bear facts. Curious about polar bears' habitat, food, life cycle and more? Welcome to the exciting world of the polar bear.
Nov 23, 2023 · Polar bears are the only bear species to be considered marine mammals, as they spend most their time on the sea ice. Their skin is actually black. The only reason why they appear white is because their fur is translucent and reflects the light, making them appear white. They have hairy feet, but not just to keep them warm.
