Beyond the blog

 A bout octopus Octopuses and their kind stand apart from other invertebrates, having evolved with larger nervous systems and greater complexity. Most of the neurons of an octopus are found in its arms and not the head. Octopus is a part of a class of marine mollusks called cephalopods. There are around 300 species are known at present. They range from less than an inch in length to the giant Pacific octopus, which weighs in at 100 pounds and spans 20 feet from arm tip to arm tip. These animals evolved large nervous systems, including their brains. A common octopus has about 500 million neurons in its body. That is a lot by almost any standard. Human beings have many more something nearing 100 billion but the octopus is in the same range as various mammals, close to the range of dogs, and cephalopods have much larger nervous systems than all other invertebrates. the size of the brain as a fraction of the size of the body tells us how much an animal is “investing” in its brain. Octo...

 All about money 1. Some of the oldest piggy banks in the world were made in the 15th century 2. A 1,400-year-old coin sold for 5.76 million, one of the most expensive coins ever. 3. Coins issued by the United States in 1787 had the words "Mind Your Business" on one side. 4. Ethiopian coins dated 1977 were actually issued in 1984. The century follows a calendar that's nearly 8 years earlier than Western ones. 5. Pikachu and other Pokemon characters appear on dollars coins in Niue, an island sone 1,500 miles from New Zealand.   6. The small tooth-shaped designs that circle the edges of some coins are called denticles. 7. Belarus issued a 20 ruble collectors coin with a picture of potato pancakes on one side. 8. The bank of England holds a 100 million pound note called a titan. 9. U.S banknotes are printed 4 times for background images, the back, the front, and serial numbers and seals.