[Avodah] Reward?

[Rich, Joel]

The beginning of the Aruch Hashulchan states (I think he may be quoting the Smak) Malachim (angels?) have no yetzer hara (evil inclination?), animals have a yetzer hara but no daat (knowledge?). Thus malachim get no schar (reward?) and animals no onesh (punishment?)
Is this knowledge of HKB"H? What does it mean to have a yetzer hara - Is it equivalent of free will? What does it mean to have free will without consequence? How then do we understand the medrash in Breishit that the trees were punished for not following HKB"H's direction? The dogs being rewarded for not barking?

KT
Joel Rich

THIS MESSAGE IS INTENDED ONLY FOR THE USE OF THE 
ADDRESSEE.  IT MAY CONTAIN PRIVILEGED OR CONFIDENTIAL 
INFORMATION THAT IS EXEMPT FROM DISCLOSURE.  Dissemination, 
distribution or copying of this message by anyone other than the addressee is 
strictly prohibited.  If you received this message in error, please notify us 
immediately by replying: "Received in error" and delete the message.  
Thank you.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.aishdas.org/pipermail/avodah-aishdas.org/attachments/20181122/8e288070/attachment-0002.htm>