$post_author: stdClass Object
(
    [ID] => 735342
    [display_name] => Bill Sardi
    [first_name] => Bill
    [last_name] => Sardi
    [user_login] => bill-sardi
    [user_email] => [email protected]
    [linked_account] => bill-sardi
    [website] => 
    [aim] => 
    [yahooim] => 
    [jabber] => 
    [description] => Bill Sardi [send him mail] is a frequent writer on health and political topics. His health writings can be found at www.knowledgeofhealth.com, billsardiblog.com and resveratrolnews.com.
    [user_nicename] => bill-sardi
    [type] => guest-author
)

get_the_author_meta: 

$bio: Bill Sardi [send him mail] is a frequent writer on health and political topics. His health writings can be found at www.knowledgeofhealth.com, billsardiblog.com and resveratrolnews.com.

$bios: Array
(
    [0] => Bill Sardi [send him mail] is a frequent writer on health and political topics. His health writings can be found at www.knowledgeofhealth.com, billsardiblog.com and resveratrolnews.com.
)

Bill Sardi [send him mail] is a frequent writer on health and political topics. His health writings can be found at www.knowledgeofhealth.com, billsardiblog.com and resveratrolnews.com.