Invertebrate Zoology

Defining asexual speciation?

Traditional discussions of speciation often ignores the underlords of biology. Biological species concepts works perfectly for species that reproduce sexually. However, the definition soon...

12 December 2013 742 12 View

What differentiates the distinct species in insects? Is there any exact definition for this differentiation?

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26 November 2013 3,392 6 View

What differentiates the distinct species in insects? Is there any exact definition for this differentiation?

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11 November 2013 2,638 7 View

Does anyone know anything about measuring iridescence reliably in insects?

I'm interested in measuring cuticular iridescence in Nasonia (very small parasitoid wasps), does anyone happen to know of any useful resources as to how to go about it? I've found very little so...

21 August 2013 5,464 3 View

Can someone suggest an accurate source of information on which newest species were discovered and the recent changes in the classification?

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11 August 2013 206 12 View

Can anyone introduce or send me an excellent source of identify key of animal branches, particularly Chordata branche?

Taxonomy, morphology, physiology, etc. Book, article, web site, etc. All branches of animals kingdom (live and fossil)! Particularly Chordata branche!

09 August 2013 2,147 2 View

Does anyone know anything about measuring iridescence reliably in insects?

I'm interested in measuring cuticular iridescence in Nasonia (very small parasitoid wasps), does anyone happen to know of any useful resources as to how to go about it? I've found very little so...

08 August 2013 3,600 3 View

What is the difference between shrimps & prawns?

What kind of external morphological difference exist & what is their taxonomic position

10 July 2013 1,416 7 View

What is the difference between shrimps & prawns?

What kind of external morphological difference exist & what is their taxonomic position

07 July 2013 4,169 7 View

Why do sea urchins show unusual population fluctuation?

Two of my colleagues and I have collected trawl catch data from 2006 - 2012. During this time we noticed an unusual phenomena that sea urchins were absent during the initial period (2006 - 2008)...

03 March 2013 9,282 15 View

Why do sea urchins show unusual population fluctuation?

Two of my colleagues and I have collected trawl catch data from 2006 - 2012. During this time we noticed an unusual phenomena that sea urchins were absent during the initial period (2006 - 2008)...

02 March 2013 2,882 14 View

What is the gene responsible for immortality in polyp Hydra?

The Hydra is consider to be biological immortal. The Hydra is a tiny animal that can be found in just about any freshwater pond, just a few millimeters long and it has extraordinary regenerative...

20 November 2012 413 2 View

What is the gene responsible for immortality in polyp Hydra?

The Hydra is consider to be biological immortal. The Hydra is a tiny animal that can be found in just about any freshwater pond, just a few millimeters long and it has extraordinary regenerative...

11 November 2012 4,874 3 View

How to prepare an artificial diet for silkworm?

Artificial diet for silkworm

10 October 2012 2,219 1 View

How to prepare an artificial diet for silkworm?

Artificial diet for silkworm

01 October 2012 2,991 2 View

Can anyone suggest me about doing RNAi in freshwater planarian?

Now, I am working on the RNAi experiment in planarian by using stardard protocol (Rouhana, Labib, et al. 2013). What is the proper length of dsRNA used in experiment. Most importantly, which...

01 January 1970 1,912 1 View

I can send the collection of invertebrate from river Stryi (Ukr. Carpathians, 2016) if anybody needs it as a whole or just some groups for research?

I have a big collection of invertebrate hydrobionts in ethanol from river Stryi near Turka town (Ukrainian Carpathians, 2016). As long as my main specialization is Crustaceans I can send the...

01 January 1970 4,567 14 View

What is the name of this species?

Name of the species of this pennatula?

01 January 1970 8,384 6 View

Specimen of Botryllus sp.

hi, can anyone help me to determine if the colonies in the images portray Botryllus schlosseri or other species?

01 January 1970 3,703 3 View

I can send the collection of invertebrate from river Stryi (Ukr. Carpathians, 2016) if anybody needs it as a whole or just some groups for research?

I have a big collection of invertebrate hydrobionts in ethanol from river Stryi near Turka town (Ukrainian Carpathians, 2016). As long as my main specialization is Crustaceans I can send the...

01 January 1970 5,042 12 View

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01 January 1970 2,777 0 View

Can anyone help identify this invertebrate from a fish gut, perhaps Psocoptera?

These were found in juvenile fish guts (fish length less than 8mm) from River Teme. Images taken under high powered microscope. It has biting mouth parts and hairs all over the body, see images.

01 January 1970 3,720 0 View

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01 January 1970 9,707 0 View

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01 January 1970 5,782 0 View