The lesson ties into the concepts of survival and extinction of multicellular organisms from the previous lessons. R: Students rethink how organisms respond to the environment as they design an experiment on one of the pond water microorganisms from the previous lesson. E: Students express their understanding on the worksheet, in class discussion, and in groups as they work to design an experiment.
Itâs too late to attract a western hummer this winter, but perhaps youâd like to try next fall. According to Weidensaul, in addition to keeping hummingbird feeders up well into autumn, many successful hummingbird hosts have late-blooming fall plants.
When the ambient temperature gets too hot, female hummingbirds will beat their wings over their nests to cool their eggs or hatchlings. The eggs normally hatch in about 16-18 days. Depending upon the species, hummingbirds can have up to four clutches, or nesting attempts with eggs. But not all eggs hatch and not all babies survive. Generally, a mother hummingbird will not abandon her eggs or hatchlings. If she disappears, something probably happened to her. They have a tough life.