Article Writing - Native English Speaker - Dog andCat Health

We need a native English writer to write topics on Dog and Cat Health issues. This is a on going project and we need 1 articles per week, 4 article a month total, 2 on dog and 2 on cats. You need to come up with any subject, but subject title should catchy and inviting for users to want to read. These articles should be informational/useful, maybe providing tips on health, fitness, disease, care guide for dogs or cats, or puppies, or senior cats...etc... The article should not contain any products for sell. The length of article should be depending on the subject but do not stuff unnecessary words to make article bloated but usually best around 400~600 words. These articles will only be used on our blog an nowhere else, so the articles should be original and not copied or reused else where. We will check for plagiarism through various online service providers. For this particular bid, we need total of 4 articles, 2 on dogs and 2 on cats. This bid will be the basis of the continues monthly projects. If interested, please provide work samples. The articles must be atleast University or higher level writing skill.