In most animals, offspring genders are determined by sex chromosomes at the time of conception. But alligators and other crocodilian species, as well as some turtles and lizards, do not have sex chromosomes. Instead, the sex of the young is determined by the temperature at which the eggs incubate during a critical ...
Nexgard: in a field study of 415 dogs, reactions included vomiting, dry/flaky skin, diarrhea, lethargy, and lack of appetite. These reactions occurred in 4% or less of dogs. Three dogs in the study had a history of seizures; 2 out of 3 experienced one or more seizures after taking Nexgard.
But what we do know is afoxolaner (NexGard) and fluralaner (Bravecto) are both part of the isoxazoline chemical class. They are commonly used against parasites, and is in the same group of chemicals as Fipronil that is widely known and understood to be a carcinogen.