biology zoology blog frog Growing Older and Bigger isometrically or allometrically

Growing Older and Bigger: isometrically or allometrically?

Are we growing isometrically or allometrically?

Meeting old classmates at reunions can be enormously interesting, especially if one hasn’t seen one’s former classmates for decades. In my case it was 50 years that I hadn’t seen the “little boys” who as 10 and 11-year olds had been my buddies. Alex, who used to be one of the smallest had grown into a really big and strong man; Lindeman, who was a good swimmer even at age 10 seemed to have grown less upward than sideways and Thomas, who used to have such wonderfully shiny black hair, now was snow white; some of the others had no hair at all. A few had retained their childish features and proportions and even after 50 years were recognizable, but the majority had changed in size and proportions. —>—>

zoology biology benno meyer rochow science blog cainism infanticide cannibalism

Cainism, Infanticide, Cannibalism

They’re not exactly pleasant behaviours

Has it ever happened to you that when you wanted to fry an egg and you cracked it open you found two egg yolks in it? If you had that experience you would probably have wondered whether two chicks could have developed from such an egg. Fact is that although two embryos may initially grow, one soon overtakes the other and causes its death, so that in the end only a single chick actually hatches. Can embryos really be so murderous?

zoology biology benno meyer rochow science blog water life pollution environment Florian Nock

Environment and pollution : Water is Life

Water is more valuable than gold

In many parts of the world people are proud of their rivers, streams, and creeks. They speak of them with veneration, they have composed songs about them (e.g., A. Dvorak’ “The Moldau”), written stories about them (e.g., Mark Twain’s “Life on the Mississippi”) and expressed in poetic verse how water hurtles down deep gorges, caresses the fingers of the weary hiker, and bathes the pebbles in soft murmur. But the reality in many countries is more than often far less romantic. That polluted waterways can, indeed, be “turned around” I have seen in Europe and Japan. When I first visited Japan in the 60s, some rivers I saw were filthy, disgustingly black and used as dumps for all kinds of garbage. And now? Not a trace of foreign objects; totally cleared up. Elsewhere in the world, however, it’s still bad.