Carbon Dioxide Sensors [Excerpts]
By Cornelius Hunter
Did you ever wonder how mosquitoes find you so quickly? Next time you might try not breathing because they are attracted to the carbon dioxide you exhale. And how do insects detect carbon dioxide? Studies have found two different neuron cell proteins (neural receptors) that seem to do the job. And they do the job exquisitely.
Blood-feeding insects, as one study explained, use highly specialized and sensitive olfactory systems to locate their hosts. The study identified two dedicated neural receptors in flies which together cause nerve signals to be sent when carbon dioxide is present. The experiments found that the presence of both receptors is required—either one alone failed to sense the carbon dioxide.
As one scientist explained, such molecular sensor systems are “exquisitely sensitive” to carbon dioxide levels we don’t even notice. They are, indeed, “wonders of natural engineering.”
Given such an exquisite design, and given that both receptors are required because a single receptor working alone is ineffective, one might think that evolutionists might struggle to explain this engineering marvel.
But evolutionists have no such problem for, as evolutionist Ken Miller has explained, god would never have created the mosquito. It must have evolved.