The analysis of 334 species of bat found that in species where the females were promiscuous, the males had evolved larger testes but had relatively small brains. In species, where the females were monogamous, the situation was reversed. Male fidelity appeared to have no influence over testes or brain size.
We now stand on the threshold of the 21st century where enormous challenges face us: staggering poverty, continuing racism, raging wars, pandemics, and the possibility of nuclear annihilation or of the irreversible despoliation of the planet. We cannot afford to approach these problems based on myths, religious or otherwise, however comforting. Religion cannot be our guide. And the alternative is not so metaphysically bleak as some would have us believe. Darwin himself said that there was a “grandeur” in his view of the unity of life. And there is hope in it too, since the scientific view of the world can lead us to a life that might be the envy of the gods, were there any.
Well, it’s because the credibility of the evidence is not predicated on its complexity. If SETI were to announce that we’re not alone because it had detected a signal, it would be on the basis of artificiality. An endless, sinusoidal signal—a dead simple tone—is not complex; it’s artificial. Such a tone just doesn’t seem to be generated by natural astrophysical processes. In addition, and unlike other radio emissions produced by the cosmos, such a signal is devoid of the appendages and inefficiencies nature always seems to add—for example, DNA’s junk and redundancy.
