Yet the actual behavior of some scientists can be manifestly unreasonable. Leading scientists will sometimes embrace a conclusion even when the evidence for it is weak. These savants become indignant when an unsupported conclusion is questioned, and they even accuse their critics of being enemies of science. On other occasions, scientists show their unwillingness to accept conclusions even when a great deal of evidence points to them. In fact, they denounce the reasonable position and prefer to align themselves with unreasonable alternatives that are clearly less plausible.