A variety of anthropogenic compounds are capable of binding to the estrogen receptor (ER) of vertebrate species. Binding of these chemicals to the ER can interfere with homeostasis by altering normal ...

This is a preview. Log in through your library . Abstract A comparison of allozyme and mtDNA frequencies was used for insight into a situation in the Pecos River, Texas where contact between the ...

An older man, perhaps in his late 60s, stood atop the trestle at Placida and dropped his line straight down along a barnacle-encrusted piling. "That's where the sheepshead hang out and that's where ...