Search found 3 matches

by dgm
Mon Nov 04, 2013 2:09 pm
Forum: Zoology Discussion
Topic: strange beetle
Replies: 4
Views: 5445

Maybe a Curculionidae?
Like, for example, something like this?
http://www.flickr.com/photos/henriqueca ... 935399360/
by dgm
Mon Nov 04, 2013 2:03 pm
Forum: Zoology Discussion
Topic: How does DNA cladistics work???
Replies: 2
Views: 7991

Well, at the very basic level it works just like traditional cladistics (i.e., based on morphological data). So, for example, a sequence of a given gene is obtained for different species and the number of transformation in the sequence required for every possible phylogenetic tree is calculated. The...
by dgm
Mon Nov 04, 2013 1:33 pm
Forum: General Discussion
Topic: How do cockroaches and mosquitoes know the difference betwee
Replies: 3
Views: 4250

What do you mean? They have eyes so they can see if there is light around or not.. Indeed, eyes can be used for both perception of forms and intensity of ligth (and thus perception of a light or dark environment) but invertebrates can also have specific receptors for the intensity of light. From thi...