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Regarding Butterflies: Mimicry and the Evolutionary Path...

Migrated topic.
Fresh news from Bizarro World...​

Spider Species Makes Sculptures Of Itself With Leaves And Insect Corpses,
Possibly As Predator Decoy​

ntgsG4k.jpg

The fake spiders were first discovered in the Peruvian Amazon in 2012. The sculptures were created by what may be a new species of Cyclosa, and the purpose of these sculptures isn't yet known. According to biologist Phil Torres, who made the 2012 discovery, the fake spiders may serve to trick predators.
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..ah the apparent intelligence of nature!

there have been questions raised about orthodox evolutionary theory such as why do we not find fossils of 'half-stages' in certain adaptions, e.g. the wing...there's no 'half a wing'..
some form of calculation or 'intelligence' seems to pick forms which work...random?

but, i don't have the scope or references handy right now.. (& i'm no biologist)
just saying Lamarck may not have got it all wrong..

good question cyb
 
nen888 said:
there have been questions raised about orthodox evolutionary theory such as why do we not find fossils of 'half-stages' in certain adaptions, e.g. the wing...there's no 'half a wing'..
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i was under the impression dinosaur "arms" were "half-wings" (used primarily for stability as it would tear its prey to shreds with its legs)
pic related: its a velociraptor
Velociraptor3.jpg
 
nen888 said:
..ah the apparent intelligence of nature!

there have been questions raised about orthodox evolutionary theory such as why do we not find fossils of 'half-stages' in certain adaptions, e.g. the wing...there's no 'half a wing'..
some form of calculation or 'intelligence' seems to pick forms which work...random?
Click to expand...
This is a common criticism, a variant of which goes like: how individual parts of complex organs evolved if their efficiency at serving said organ can only judged when the organ is complete? In other words,it would appear that feathers evolved with a foresight of being used in a wing or the eye lenses evolved to serve the complete eye bulb.

The mainstream answer is that the individual parts that make complex organs preexist but assume different functions. Feathers on forelimbs could initially participate in mating rituals; the very same feathers in a more advanced, species could be used for manoeuvring while said species chased prey (or was chased by). Further evolutionary modifications might have brought feather shape and structure to the point of performing long jumps from an elevated level, followed by (or simultaneous) limb modifications. And so the story goes on.
 
cyb said:
Parsh said:
pic related: its a velociraptor
Click to expand...
Scary looking pic....till you find out that a velociraptor is actually the size of a chicken. :d
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yea everyone has a misconception about velociraptors, because in jurassic park they modeled the size of the velociraptor after the deinonychus which is an average of 12 feet long, and ~150 lb.
which is.. considerably bigger than a chicken :lol:

...plus the movie opened the main character talking about how scary velociraptors are, to scare the piss out of school-children.
 
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