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5 Fun Facts About Sea Sponge

Sea Sponges are multi-cellular creatures that do not have a brain and organ systems and depend on the constant flow of water through their porous bodies to get the oxygen and food they need to survive. There are over 9000 recorded varieties of sea sponges in the world today and they can be found at various depths right from the seashore to the abyssal zone, which is the deepest part of the ocean. 

Here are 5 fun facts about them: 

  1. Fossil records of sea sponges indicate that sponges first made an appearance on the Earth 650 million years ago. This makes them one of the earliest life forms on the planet.
  2. There are currently 480,931 marine species known and on record and an estimated 2 million that are as yet unrecorded and unknown (i.e. there is not enough evidence – be it visual proof or physical proof – to classify any unknown animal as a distinct species) in all the lakes, seas and oceans of the world. It’s believed that 75% of the world’s entire marine population (480K + 2 Million) accounts for sponges.
  3. Since they don’t have any age-rings (like in trees), it can be hard to accurately estimate the age of a sea sponge. But analysis of growth rates indicates that some sea sponges grow 0.2 mm (0.000656168 feet) per year. Based on this, sponges as small as 1 meter (3.2 feet) wide may be over 4500 years old!
  4. A sea sponge in the Caribbean – Tectitethya crypta – produces two chemical compounds which can treat certain types of cancer and HIV. The chemicals – spongothymidine and spongouridine – have been used to develop the HIV drug Azidothymidine (AZT) which can be used to prevent mother-to-child and needle-to-skin AIDS/HIV transmission. The same chemicals have also helped create medication for leukemia and herpes. 
  5. The biggest debate since the time of Aristotle has been – “Are sea sponges plants or animals?” Although they resemble plants in appearance and remain permanently fixed to the spot they grow on like plants, sea sponges are not plants. Why? 

– Sea sponges can’t produce their own food like plants and rely on stray organic matter to float into their pores via the flowing water.

– Sea sponges have an immune system like other animals which reject dissimilar cells if transplanted into them. Scientists need to use immunosuppressants to successfully transplant dissimilar cells into their bodies. 

– Finally, some sea sponges produce and release sperm to indulge in sexual reproduction. 

These characteristics makes sea sponges inherently animal-like.

 

Bonus

Today, you can find a feminine hygiene product called “Menstrual Sponges” on the market. Basically, these are sea sponges that are used as re-usable tampons. In many parts of the world (especially in developed, first-world countries), sea sponges are a favoured alternative to toxic, non-biodegradable and expensive sanitary pads and tampons. Here is a link to the Top 5 most preferred sea sponge tampons

Would you use them?

 

Tidal zones
Various tidal zones in the ocean – sea sponges are found at each level, right from the seabed to the Abyssal zone.

 

Sea Sponge 2
Sponges grow in large clusters across the ocean bed. (image source)

 

Sea Sponge 3
A female sea sponge that’s spawning .i.e. releasing fertilised eggs into the ocean. Most sponges are hermaphrodites – both male and female – and can produce sperm and eggs simultaneously.  (image source)

 

Sea Sponge 4
Different types of sea sponges in the world. (image source)

 

 

-NISHA PRAKASH 

P.S: Featured image source
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5 Beautiful Fungi From Around The World

Fungi are a group of organisms in the plant kingdom that include mushrooms, moulds and yeast. While some are plain-Jane in appearance, others look too beautiful to be real. But the fact is, they are real, they are beautiful and some are deadly. 

Here’s our list of 5 beautiful fungi from around the world:

Pixie’s Parasol Fungus

Found in Australia, New Zealand, Chile and New Celadonia, Mycena interrupa, aka, the Pixie’s Parasol grows on moist beech and eucalyptus trees. 

 

Fungi 1
Pixie’s Parasol Fungus

 

Red Coral Fungus

Found under hemlocks, conifers and other deciduous trees in North America and the Himalayan Mountain Range, Red Coral Fungus is one of the few edible fungus in the world. 

 

Fungi red coral
Red Coral Fungus

 

Orange Peel Fungus

Growing in North America, the Orange Peel Fungus gets its name from the cup-like, orange-coloured body it has. Although it is harmless to humans and can be eaten, it is usually avoided since it very closely resembles its highly-toxic cousin, the Otidea onotica.

 

 

Fungi orange peel
Orange Peel Fungus

 

Fungi Otidea onotica
Otidea onotica – poisonous to humans

 

Porcelain Fungus

A common sight in Europe, the Porcelain Fungus grows on rotting tree barks. It releases a very strong and foul smelling fungicide that prevents animals from eating it and that destroys other plants or fungi that grow near it. 

 

Fungi Porcelain fungus
Porcelain Fungus

 

Mycena Chlorophos Fungus 

One of the handful of bio-luminescent fungus in the world, the Mycena chlorophos is found in subtropical Asia, Brazil and Australia. It glows the brightest when it is a day old and starts losing its bio-luminescence as it ages, until its glow becomes absolutely undetectable to the naked eye. 

 

Fungi Mycena Chlorophos
Mycena Chlorophos Fungus

 

 

Although these are amazing, they aren’t the only beautiful and brilliant fungi around the world. Stay tuned to Stories So Wild for more fungi-related posts!

 

 

-NISHA PRAKASH 

 

P.S: Featured Image: Golden Spindle Fungus