As i read the series i noticed many errors throughout the book:
1. In book 1, jake is able to thought speak to tobias even though he is in human form
2. thoughout the whole series: inconsistencies in Andalites not understanding humour; some Andalites have humour, some don't even know what humour is.
3. it is not mentioned how Yeerks find their hosts again once in the pool, since according to Ax in book 6 Yeerks are blind in natural state, and cannot even see the animorphs standing right beside the Yeerk pool, and according to book 29 Yeerks fire some kind of echolocation that helps them 'see' vaguely, but not clearly enough to see the faces of people (if the echolocation thing is clear enough then in book 6 the animorphs would have been seen when standing beside the Yeerk pool)
4. ebooks have many errors in spelling
etc... ....
Do post and discuss more errors in the series here! [youtube][spoiler][/spoiler][/youtube]
note: do make a note if you are going to reveal any plot spoilers. thanks. the above are NOT spoilers since they don't really affect the plot in any way.