Polar bear facts are fascinating. The polar bear has a scientific name of “Ursus maritimus”, which means bear of the ocean. They live usually within the arctic circle and the arctic sea. Due to reducing amounts of ice in the arctic, which it needs to hunt, they are having challenging times currently and some populations are reducing. However compared to other carnivores, it is still found throughout a greater amount of its original habitat than any other.

The polar bear is the largst meat-eating animal found on land, and also equal largest bear with the kodiak bear. Females are typically about half the size of males.

The closest relative is the brown bear and if the two species mate they can produce live young. However neither species can live successfully in the other’s habitat.

There are probably less than 25,000 of them left alive today and they could become extinct within the next 90 years especially if the sea ice continues to reduce in their hunting areas. Their sense of smell is much better than a human’s . . . they can smell a seal (which is their main food) a mile away. However their hearing is no better than a persons.

A polar bear will get too hot if the temperature is more than ten degrees centigrade because of their thick layer of body fat which they need to survive in the arctic.

Most of the lifetime of a polar bear is spent on the sea-ice hunting seals. They can swim about twice as fast as their usual walking distance and will swim very long distances such as several hundred miles. While their main food is seals, they will also sometimes eat beluga whales or walrus (which are up to twice their size). They can go for several months without eating anything when they need to.

For more interesting facts on polar bears, and for some beautiful photos of them, see our other blog posts . . .

Interesting Facts On Polar Bears

Scientific Name For Polar Bear

Starfish can also be called “Sea stars” and are echinoderms of the class “Asteroidea”. Brittle stars, also often called starfish, are really a diffrent family of creatures although related.

There are more than one thousand eight hundred species of starfish. They live in all oceans even arctic and antarctic, from shallow to very deep.

It is well known that a starfish can regenerate a missing limb, but it is less well known that this ability varies with different species. Different species have different feeding habits and some specialise although not all.

Although starfish are well known for their 5-way symetry when adults, they are bilateral when larval, and not all species have 5 legs. Some species have up to fifty legs!

The body of starfish has “tube feet” which are used for both feeding and movement, as well as a basic circulation system. On the end of each leg is a microscopic eye which can see basic light, dark and movement. Some starfish excrete poisons.

Some, but not all, starfish can eat by moving one of their two stomachs outside their body. This can be used to force open shellfish as well as enabling them to eat prey far bigger than their mouth size. However, starfish are not all totally carnivorous and some of them eat algae and other material.

A starfish has nerves but no brain. It can taste and smell with the ends of their feet, as well as being able to detect temprature, touch and orientation.

Starfish can reproduce both sexually and aesexually. Some species start off as male and later become female, some are both at once, and some divided into male individuals and female individuals.

Some starfish can grow a whole new body from a single arm. They live from between about 10 years to about 35 years, with the larger species living longer typically.

Here are some beautiful photos of starfish . . .

Starfish

Two starfish, beautiful and geometric.

Starfish on Beach, Maldives

Starfish on a sublimely beautiful beach in the Maldives.

The Collection I

A beautiful collection of starfish, coral and seashells, delicate and pale, organic and fascinating!

Explore

“Explore” . . . “My life is like a stroll on the beach, as near to the edge as I can go”. A powerfully evocative image bringing to mind exploration of remote beaches in beautiful exotic lands . . .

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More than 600 Starfish Images (which you can buy if you wish as posters)

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