I found this 自然圖書館, 北京少年儿童出版社 at "IXXX" few weeks ago! This set of books is suitable for elder kids (probably up to secondary level, very informative but look like a textbook) that why I didn't buy too.
In terms of the printing quality and content, DK视觉奇观 / 动物世界大揭秘 / 儿童目击者 / DK系列背靠背儿童科学小丛书 / 动物知识翻翻书 / are better alternatives for younger kids!!!