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Mermaid’s Toenails

Another shell, we found along the wrack line of the beach at Sunken Meadow State Park on New York’s Long Island was the delicate Jingle Shell. Jingles have shiny, thin, translucent shells. This organism gets its name from the sound made when the shells bump against each other when strung on a necklace.

These bi-valve mollusks (organisms that have two shells such as the clam) are filter feeders siphoning plankton (single cell organisms) from the sea water. Normally, people only find one of the shells when it comes loose from the side that is attached to the seafloor.

Jingle Shells are also called mermaid’s toenails. The shells look like toenails that have been painted with a gloss coat of nail polish. These shells are fun to collect because they come in several pale colors and can be used in arts and crafts.

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Slippers on the Beach

After overturning horseshoe crab shells on the beach at New York’s Sunken Meadow State Park located on the Long Island Sound, my granddaughters turned their attention to the shells that washed up in the wrack. Most of the shells were Atlantic slipper shells – marine snails. If you overturn the shell and look at the underside, it resembles a small slipper.

Slipper shells lead a sedentary life, attaching themselves to hard surfaces including rock and even the empty shells of other animals. It is not unusual to see clusters of slipper shells on the same shell.

Unlike other marine snails that actively feed on algae, this species is a filter feeder. They strain plankton – microscopic bacteria, algae and protozoa that float in the marine water.

The slipper shell animal is abundant and ubiquitous, but the acidification of our oceans due to all the carbon we are putting into our atmosphere may lead to an inability for the organism to form calcium carbonate – the substance shells are made of.

Will slipper shells disappear through a mass extinction like the abundant and ubiquitous trilobites of several hundred million years ago leaving behind petrified impressions in rocks. Will Homo sapiens even be around to see these fossils and document a great extinction where most of life today as we know it disappears? Only time will tell.

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“Dead” Horseshoe Crabs on the Beach

During a recent visit to New York’s Long Island, two of my granddaughters and I walked along the shoreline of Sunken Meadow State Park to see what we could find in the wrack line (an area of debris deposited on the shore by high tides). They immediately find Atlantic horseshoe crab molts that were strewn in the wrack as far as the eye could see.

As a horseshoe crab grows, it outgrows its old shell. It develops a new, soft shell and pushes out the front of the old shell leaving the molt behind. Storms and high tides deposit many of these sheds on shore. These ancient organisms will molt many times over the course of 10 years until it reaches its full size.

Horseshoe crabs are not crabs; they are a closely related to trilobites, an ocean organism that became extinct over 252 million years ago during the Permian Extinction. Horseshoe crabs are a living fossil; they survived on this planet for 360 million years.

My granddaughters must have picked up and held out dozens of molts of all sizes as we walked along the water’s edge. Their attention turned to other organisms washed ashore which will be the subject of the next few blogs.

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Hurricane Irma Humbled Me

 

Her winds snapped utility poles in half causing transformers to explode with electric sparks flying and wires to break and in those moments, we were in the dark. No lights, no air conditioning, no TV and no internet. Just a blustering wind that drove rain against the window panes and that caused our roof to creak with each outburst. Tropical winds and hurricane force gusts of air made palm tree fronds shake violently and pine tree branches snap. Torrents of windswept rain turned roads into shallow rivers and yards into ponds.

The next evening, after the storm passed, I ventured out in the night to experience the peacefulness of the natural world. There was no moon, only twinkling starlight that cut through the blackness of the night. I admit, it was eerie with the absence of street lights and the sounds of cars on nearby highways. Ponds, filled with fresh rainwater, triggered frogs to croak while barred owls called out with their “Who Cooks for You” chant from distant tree tops.

It was uncomfortable without the modern conveniences, yet for the Seminole people who lived here hundreds of years earlier, it was their way of life. Chickee huts constructed of cypress trees with platforms three feet above the ground and palmetto thatch roofs, had no lights, no air conditioning, no TV, no internet. The blackness of the night was not unnerving to them, it was just another night. They drew comfort from the singing of the frogs and owls and other calls of the night.

I guess, not living in those earlier times when there was absence of the conveniences of today, I am spoiled. I do not know if I could live the way of native Americans. After a couple of days without air conditioning, Anne and I left our little town and went to a hotel that had power for air conditioning units, WiFi for internet and TV. I have greater appreciation for the people who lived in earlier times; they were resilient in the face of adversity. And yet, I am here as a result of their resoluteness. I am truly humbled by it all.

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Hurricane Irma is on Its Way!

Numerous birds are at our Florida feeders engorging on the variety of seeds in the food we put out for them. Anne and I are in the process of stocking up on food too. The propane tanks are full and the barbecue and camping stove are in working order. We have also  stocked up on water and batteries.

We will probably loose our electric and the internet will go down and the cell phone service may even go out so this blog will go on hiatus until after the storm passes and services are restored.  We were in New York for Super Storm Sandy so check out my blog entry called: What do Birds do During a Hurricane?  (https://naturechirp.com/2012/11/20/what-do-birds-do-during-a-hurricane/)

For all of you in the path of this powerful storm, be safe.