Walmart offers Roger Priddy's First 100 Animals Board Book for $3.69. (Amazon offers it for a few cents more for Prime members.) Opt for in-store pickup to avoid the $4.97 shipping charge. That's the lowest price we could find by $4.
Of note, Amazon offers Prime members Roger Priddy's First 100 Words Board Book for $3.30 with free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, shipping costs $4.98.) That's tied with our April mention and the lowest total price we could find by $1.