Two Days in Athens

Two Days in Athens

Here we are in Athens, Hellenic Republic, for just two days, which doesn’t give us to much time for adventure, but we are going to do our best!  😎  Cleverly, we are staying in an Airbnb that is walking distance from the Acropolis, so that’s first...
Hummingbirds

Hummingbirds

Birds are cool. First of all, they have ZW sex-determination chromosomes, rather than XY, and the ovum determines the sex of the offspring. The males have the ZZ chromosome (the larger one with more genes), and the females have the ZW chromosome. Second, and more...