The males, as a result, developed structural changes. They acquired nuptial pads, which helped them to clutch the slippery females, an example perhaps of striving. Kammerer said that the changes were transmitted to later generations in a Lamarckian manner. Many biologists heartily disagreed. The worst trouble came when an important preserved specimen was found to have been altered.
Nobody knows who did the tampering, or why.
The story ended in calamity. Kammerer killed himself. Again, nobody knows why. Some believe he was turned down by a lover. And nobody has been able to confirm his findings.