Viewing a single comment thread. View all comments

jazzman7838 t1_iqvdajr wrote

Reply to comment by littlegreenrock in Chernobyl black frogs reveal evolution in action by Picture-unrelated

JFC. You are a science teacher? Where? Do you deny the fact of Darwinian evolution?

It’s not JUST a change in color. You’re acting like the frogs got a sun tan. What is changing over successive generations is the frequency of genes in the population that code for more melanin. The population is changing. The gene frequencies are changing. The offspring are very slightly different than their ancestors, on average. That’s evolution, baby. The author of the study has a PhD in biology.

2

littlegreenrock t1_iqve0f4 wrote

you're describing selection and variance. this isn't a new frog species, it's a new colour.

0

jazzman7838 t1_iqvf90e wrote

You really should take a hard look at whatever “lesson” you got in college and actually read what evolution means from some current evolutionary biology papers. It doesn’t only refer to speciation. Obviously speciation can happen as a gradual process without a clear start and end date as two populations slowly diverge. That process is called…evolution.

2