Questions with the keyword 'animal behaviour'

• Why do some birds fly and some don’t? by FabGuy5000 (Wilfred from Broadoak) to Theo, Philip, Kerry, Ali, Alex Comments: (No comments so far )
• do you think that apes understand the English language but are just not able to speak it or do you think they ignore us by diddykong to Alex, Ali, Kerry, Philip, Theo Comments: (No comments so far )