Butterflies are very interesting. Here these things are little grubs for a while. And then they go into a little coffin. There they are in a sarcophagus, and then they come out and dance with the angels.

The other creatures with which we share this world have their rights too, but not speaking our language, they have no voice, no vote; it is our moral duty to take care of them.

Butterflies are very interesting. Here these things are little grubs for a while. And then they go into a little coffin. There they are in a sarcophagus, and then they come out and dance with the angels.

Birds ... are sensitive indicators of the environment, a sort of "ecological litmus paper," ... The observation and recording of bird populations over time lead inevitably to environmental awareness and can signal impending changes.

Birding, after all, is just a game. Going beyond that is what is important.

Birds are indicators of the environment. If they are in trouble, we know we'll soon be in trouble.

Penguins are an indicator of the health of our watery planet, and if they are unable to survive, we had better take notice or we might find our own survival threatened.