Polar Bears: The Kings Of The North

The Polar bear is represented as a warm loving animal that lives in some of the coldest climates known to this planet. These animals are not warm in loving, however. They are the largest bear species alive standing at heights of almost 10 feet tall. That is the size of a basketball hoop! Not only are they massive in size but, they are hungry for meat as well. These animals are hypercarnivorous which means that their entire diet consists of over 70% of meat!

How do these animals stay warm if they are in such cold conditions? The polar bear is extremely well adapted for these conditions with a 10cm thick layer of blubber and a 15cm thick layer of fur! All of these insulations for thermoregulation means that the Polar bear can stay warm in temperatures 30 below zero. One of the things that might surprise you the most is the color of a Polar bear. On a polar bear, there is no white pigmentation. Their skin is actually black and their fur is hollow. The reflection of their environment makes them appear white. This black skin also helps absorb heat.

Coral: Is It Really Alive??

Coral is one of the most amazing and beautiful creatures in the ocean. They litter the rocks and floors of the ocean with color and protection for other animals. At first glance, you may think that coral is a type of plant. In some way, you would be right. But, there is a huge difference between plants and coral. Coral is actually more evolutionally related to humans than they are to plants. Coral falls into a very similar category as the sponges you use for cleaning your dishes. They are marine invertebrates in the phylum Cnidaria. The Phylum Cnidaria consists of marine organisms that have specialized cells for capturing prey. This Phylum even consists of Jellyfish. Coral is specifically in the class Anthozoa. This class is a section of Cnidarians that filter water through an internal system of septa and folds in the body leading to a large cavity for digestion.

The reason that pollution is associated with the decrease in coral populations is due to algae. When sedimentation and other objects enter the water it increases the growth rate of certain algae that decrease the quality of water. This decreased quality of water results in coral becoming susceptible to disease, death, and decreases production rates. The death of coral has an overlying effect on creatures of the ocean. Coral provides food for the smallest of animals and even protection. This leads to a snowball effect that can cause disaster for all animals.