13 MAY 2013 by ideonexus
Dyson Tree
Many species of terrestrial plants, including the skunk cabbage that sprouts in February in the woods of Princeton, New Jersey, where I live, are warm-blooded to a limited extent. For about two weeks the skunk cabbage maintains a warm temperature by rapidly metabolizing starch stored inside the part of its anatomy known as the spadix, which contains the hidden flowers with their male and female structures. According to folklore, the spadix is warm enough to melt snow around it. The evolutiona...Folksonomies: biology speculation
Folksonomies: biology speculation
1 
notes
notesA plant that grows a greenhouse to sustain itself in persistently cold climates.
19 MAY 2011 by ideonexus
Theory of Evolution Predicts the Existence of a Species
Both Darwin and his co-discoverer of natural selection, Wallace, called attention to an
amazing orchid from Madagascar, Angraecum sesquipedale (see colour page 4), and both men
made the same remarkable prediction, which was later triumphantly vindicated. This orchid has
tubular nectaries that reach down more than 11 inches by Darwin's own ruler. That's nearly 30
centimetres. A related species, Angraecum longicalcar, has nectar-bearing spurs that are even
longer, up to 40 centimetres (more tha...
1 The existence of an orchid means there must be a species adapted to reaching its nectar.
03 MAY 2011 by ideonexus
Hummingbirds are Proof of the Cost of Sex
If sex had no cost, hummingbirds would not exist. Hummingbirds eat nectar, which is produced by flowers to lure pollinating insects and birds. Nectar is a pure gift by the plant of its hard-won sugar to the hummingbird, a gift given only because the hummingbird will then carry pollen to another plant. To have sex with another plant, the first plant must bribe the pollen carrier with nectar. Nectar is therefore a pure, unadulterated cost incurred by the plant in its quest for sex. If sex had n...Plants offer nectar to hummingbirds in exchange for their role in plant sex.
03 JAN 2011 by ideonexus
The Beauty of a Flower
I have a friend who's an artist and he's sometimes taken a view which I don't agree with very well. He'll hold up a flower and say, "Look how beautiful it is," and I'll agree, I think. And he says--"you see, I as an artist can see how beautiful this is, but you as a scientist, oh, take this all apart and it becomes a dull thing." And I think that he's kind of nutty. First of all, the beauty that he sees is available to other people and to me, too, I believe, although I might not be quite as r...Why science makes the world more beautiful by providing insights into its beauty. This doesn't just apply to something commonly considered beautiful, like a flower, but to all of the world, natural and technological, to simple rocks, sand, wind, stars, planets, the sun. We scientists are a keenly aware of the molecular organization, epic history, thermodynamics, universal scale, wave phenomena, and everything else that goes into even the most mundane details of our existence.
