Tag: ocean

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The “Aliens” Among Us

Octopus
Octopus

Imagine a creature that has no backbone, no ribs, in fact, no skeletal structure at all. It can weigh up to 200 pounds (90 kg), and its arms can be almost seven feet (2 m) long. It has three hearts, and the color of its blood is blue. Its limbs are covered with hundreds of tongues which have taste receptors, and its body is embedded with cells that sense light. Its eight arms are covered with suckers that can be moved independently and have tongues and taste receptors embedded in them. This “alien” creature is not as alien as you might think. It’s the octopus.

The octopus is the dominant member of a class of marine animals called cephalopods which number some 750 known living species. Octopuses have about 300 species, and they are far and away the most intelligent of the cephalopods. Trying to keep an octopus in an aquarium is almost impossible because they always find ways to escape. Since they have no skeletal structure, they can squeeze through the smallest crack. They can unscrew a jar lid, fit into a drain pipe, and camouflage their activity by releasing a cloud of ink. In an article on “Animal Intelligence” in the “News and Notes” section of our November/December 2016 printed publication, we told the story of “Inky” the octopus. Inky squeezed through a narrow gap at the top of his tank at the National Aquarium of New Zealand. After flopping to the floor, Inky scooted across the room to the opening of a drain pipe. He got into the pipe and dropped 164 feet (50 m) to where the pipe entered the sea, and there he escaped.

Octopuses are designed to control various animal populations in the coral reefs and other areas of the oceans. They are beautiful creatures that are part of God’s design for an ocean environment that humans are only beginning to understand.
–John N. Clayton © 2017

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God’s Swiss Army Tree

Mangroves
Mangroves

Most of us know what a Swiss Army Knife is. The one I had as a kid had a knife, can opener, bottle opener, nail file, corkscrew, screwdriver, and scissors all built into one six-inch container. You pulled out of the container whatever you wanted to use. While it didn’t always work well, it did a large number of things.

The mangrove is a tree which God has created to do a large number of different things. The design of the tree is ingenious. The roots of the plant filter out 90% of the salt from seawater so the plant can grow along any ocean shoreline. The leaves of the plant are waxy and thick so that the water inside the plant is stored efficiently. The roots make the plant look like it is on stilts, but their design gives stability even in the worst of storms. Those same roots sequester carbon four times more effectively than tropical rain forests.

In addition to all of those things, the mangrove is home to a wide range of living organisms. The root system is a protective breeding ground for many different species of fish as well as crustaceans, mollusks, barnacles, and turtles. Many varieties of sea-birds such as egrets and warblers nest in mangroves. There are about 60 species of mangroves in the world, and they are all beneficial. Not only do they protect the shorelines from beach erosion and shelter fisheries, but the wood is used in a variety of ways.

We take for granted all that God has done to allow us to live on this planet. Having a plant as versatile and useful as the mangrove is a great testimony to God and his wisdom in designing things that allow us to live here. We need to treasure and take care of what God has given us. Remember that one of the first jobs God gave humans to do was to “take care of the Garden, dress it and keep it” (Genesis 2:15). That responsibility is still one we should do responsibly. Data from World Wildlife Magazine, January 2017, page 5-6.
–John N. Clayton © 2017

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The Frillfin Goby–A Fish with a Built-in GPS

Frillfin goby

One of the most studied fish in the ocean is a three-inch long shore fish called the frillfin goby (Bathygobius soporator). This little fish has even gotten attention from the New York Times which ran an article about studies by Dr. Jonathan Balcombe on this fish and how it survives (May 15, 2016).

This fish lives in the intertidal zones in the Atlantic Ocean. When the tide goes out, the fish lives in small tidal pools which are isolated and free of the large predatory fish which pose a threat when the tide is in. The problem is that these small pools can be hunting grounds for shorebirds and crabs so sometimes the fish needs to change pools. The goby does this by jumping out of its pool and landing in a nearby pool that offers better protection. The obvious problem with making this jump is knowing where the next pool is to land in it and not on bare rock. In 1971 a study was done at the American Museum of Natural History to see how the frillfin goby learns where to jump and how far to jump to land in the pool. Their conclusion was that the goby swims over the area at high tide and makes a mental map of the topography of the sea-floor. It can use this mental map 40 days later to escape from a predator. Essentially they have a mental GPS that allows them to make what would otherwise be a very dangerous escape.

This is not a chance driven device. Observers did not see any case where the goby missed its pool. The accuracy of the jumping is far beyond chance. This instinctive drive and the biological features that sustain it are an evidence of an intelligence providing for life in every nook and cranny of the world around us. For more information see the Annals of the New York Academy of Sciences 188 (1): 378-392.
–John N. Clayton © 2017