View previous topic | View next topic

The Most Boring Animal on the Planet

Page 5 of 5
Goto page Previous  1, 2, 3, 4, 5

196063.  Mon Jul 30, 2007 6:04 am Reply with quote

You could also have a gopher or a gundi.

253220.  Sun Jan 06, 2008 12:01 pm Reply with quote

djgordy wrote:
Sponges are quite boring (unless they're cartoon sponges of course) and this one is even called the "yellow boring sponge" (Cliona celata). Condemned out of its own mouth I would say.

Disagree. Sponges are the simplest animals in the whole animal kingdom, and they provide a link between single-celled protozoa and multicelled animals with organs and systems.

For a start, their cells are so loosely integrated that if you feed a sponge through a fine muslin net the cells will fall apart and then re-assemble again.
Their bodies are basically a whole bunch of cells linked by chemicals with little differentiation (that's the way cells specialise and form into tissues and organs.) Their only real systems are a reproductive system to keep the species going, a digestive system (which is really just a big sac with enzymes) and in some species a kind of skeleton (minerals forming over the cells and making supporting structures known as spicules.)

Sponges are very closely related to a single-celled organism called choanoflagellates (collared cells). These cells look very similar to the cells in a sponge's body. They can also form clusters and colonies that look a little like sponges themselves. Perhaps choanoflagellates and sponges represent a stage in evolution that led from single celled organisms to true animals.

Blackpool Rule
270990.  Mon Feb 04, 2008 5:37 pm Reply with quote

Fish have been on the earth for more than 450 million years.

Fish were well established long before dinosaurs roamed the earth.

There are over 25,000 identified species of fish on the earth.

It is estimated that there may still be over 15,000 fish species that have not yet been identified.

There are more species of fish than all the species of amphibians, reptiles, birds and mammals combined.

40% of all fish species inhabit fresh water, yet less than .01% of the earth's water is fresh water.

The spotted climbing perch is able to absorb oxygen from the air and will crawl overland using its strong pectoral fins.

Some fish like sharks don't posses an air bladder to help keep them afloat and must either swim continually or rest on the bottom.

Some fish make sounds by grating their teeth and others like some catfish make sounds from their air filled swim bladder.

Some species of fish can fly (glide) others can skip along the surface and others can even climb rock.

Fish have a specialized sense organ called the lateral line which works much like radar and helps them navigate in dark or murky water.

The largest fish is the great whale shark which can reach fifty feet in length.

The smallest fish is the Philippine goby that is less than 1/3 of an inch when fully grown.

Some species of fish have skeletons made only of cartilage.

Fish have excellent senses of sight, touch, taste and many possess a good sense of smell and 'hearing'.

Fish feel pain and suffer stress just like mammals and birds.

Tropical fish are one of the most popular pets in the U.S.

95% of tropical fish mortality results from improper housing and nutrition.

Many tropical fish sold in the United States are harvested from the wild in Africa, Asia, and Central and South America.

271045.  Mon Feb 04, 2008 7:28 pm Reply with quote

If you're going to cut and paste facts from elsewhere, can you at least provide a source please?

271131.  Tue Feb 05, 2008 5:35 am Reply with quote

Blackpool Rule wrote:
Fish have excellent senses of sight

Apart from the ones that don't:

Honestly. That's about as useful a statement as "mammals have excellent senses of sight, touch, taste, yadda yadda yadda".

Yes, some do. Then again. some don't.


Page 5 of 5
Goto page Previous  1, 2, 3, 4, 5

All times are GMT - 5 Hours

Display posts from previous:   

Search Search Forums

Powered by phpBB © 2001, 2002 phpBB Group