Sibling non-rivalry in plants

Apparently, plants are nice to their own “brothers” but get competitive with other plants nearby if they are not related, according to this new research. Excerpt:

“When plants share their pots, they get competitive and start growing more roots, which allows them to grab water and mineral nutrients before their neighbours get them. It appears, though, that they only do this when sharing a pot with unrelated plants; when they share a pot with family they don’t increase their root growth. Because differences between groups of strangers and groups of siblings only occurred when they shared a pot, the root interactions may provide a cue for kin recognition.”

See full article.

“For God’s Sake, Please Stop the Aid”

Speigel has a very interesting interview with Kenyan economics expert James Shikwati where he says that aid to Africa is doing more harm than good. Excerpts:

Huge bureaucracies are financed (with the aid money), corruption and complacency are promoted, Africans are taught to be beggars and not to be independent. In addition, development aid weakens the local markets everywhere and dampens the spirit of entrepreneurship that we so desperately need. As absurd as it may sound: Development aid is one of the reasons for Africa’s problems. If the West were to cancel these payments, normal Africans wouldn’t even notice. Only the functionaries would be hard hit. Which is why they maintain that the world would stop turning without this development aid.

And later:

Why do we get these mountains of clothes? No one is freezing here. Instead, our tailors lose their livlihoods. They’re in the same position as our farmers. No one in the low-wage world of Africa can be cost-efficient enough to keep pace with donated products. In 1997, 137,000 workers were employed in Nigeria’s textile industry. By 2003, the figure had dropped to 57,000. The results are the same in all other areas where overwhelming helpfulness and fragile African markets collide.

I know nothing about Africa, or aid to Africa. I don’t have enough information to decide whether to agree with Shikwati or not. But this sure is a contrarian viewpoint – a side to the argument that most people are unfamiliar with. Hence, I believe it is a must read. I love contrarian points of view. Read the full article.

Useless body parts

This webpage has a fairly comprehensive list of all body parts that are now useless. Some time in our evolutionary past, they were useful, but are now just sitting around, waiting for evolution to get rid of them. For example:

ERECTOR PILI:
Bundles of smooth muscle fibers allow animals to puff up their fur for insulation or to intimidate others. Humans retain this ability (goose bumps are the indicator) but have obviously lost most of the fur.

See full article. Blogging about it because some things you just need to know for no good reason…