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http://www.physorg.com/news/2011-06-bird-brained-clever-crows-recognise.html

Complete thread:

For Matt: Corvids are amazing David Turell 2011-06-29, 02:28 PM
- For Matt: Corvids are amazing xeno6696 2011-07-02, 01:01 PM
  - For Matt: Corvids are amazing David Turell 2011-07-02, 02:00 PM
    - For Matt: Corvids are amazing xeno6696 2011-07-02, 02:44 PM
      - For Matt: Corvids are amazing David Turell 2011-07-02, 04:42 PM
      - For Matt: Corvids are amazing David Turell 2012-10-10, 12:50 PM
        
        Clever Corvids David Turell 2013-02-05, 08:00 PM
        
        Clever Corvids David Turell 2013-12-01, 05:56 AM
        
        Clever Corvids: patience David Turell 2014-03-11, 06:58 PM
        
        Clever Corvids: beckedness David Turell 2014-12-05, 01:48 AM
        
        Clever Corvids: vs. two-year olds David Turell 2014-12-13, 06:53 PM
        
        Clever Corvids: analytic thinking David Turell 2015-02-10, 07:43 PM
        
        Clever Corvids: clever Mexican jays David Turell 2015-05-23, 04:43 PM
        
        Clever Corvids: keeping count David Turell 2015-06-09, 05:02 PM
        
        Clever Corvids: using tools David Turell 2015-08-28, 11:08 PM
        
        Clever Corvids: using tools dhw 2015-08-29, 07:45 AM
        
        Clever Corvids: using tools David Turell 2015-08-29, 01:21 PM
        
        Clever Corvids: using tools dhw 2015-08-30, 08:26 PM
        
        Clever Corvids: using tools David Turell 2015-08-30, 10:29 PM
        
        Clever Corvids: using tools dhw 2015-08-31, 06:24 PM
        
        Clever Corvids: using tools David Turell 2015-09-01, 12:39 AM
        
        Clever Corvids - consciousness derail romansh 2015-09-01, 12:51 PM
        
        Clever Corvids - consciousness derail David Turell 2015-09-01, 07:36 PM
        
        Clever Corvids: using tools dhw 2015-09-01, 03:25 PM
        
        Clever Corvids: using tools David Turell 2015-09-01, 11:33 PM
        
        Clever Corvids: intelligence derail romansh 2015-09-01, 11:51 PM
        
        Clever Corvids: intelligence derail David Turell 2015-09-02, 12:06 AM
        
        Clever Corvids: intelligence derail romansh 2015-09-02, 12:23 AM
        
        Clever Corvids: intelligence derail David Turell 2015-09-02, 03:28 AM
        
        Clever Corvids: intelligence derail romansh 2015-09-02, 12:39 PM
        
        Clever Corvids: intelligence derail David Turell 2015-09-02, 01:06 PM
        
        Clever Corvids: intelligence derail romansh 2015-09-03, 12:32 AM
        
        Clever Corvids: intelligence derail David Turell 2015-09-03, 03:44 AM
        
        Clever Corvids: intelligence derail romansh 2015-09-03, 03:46 AM
        
        Clever Corvids: intelligence derail David Turell 2015-09-03, 01:46 PM
        
        Clever Corvids: using tools dhw 2015-09-02, 07:23 PM
        
        Clever Corvids: using tools David Turell 2015-09-02, 09:16 PM
        
        Clever Corvids: responsese without neurons David Turell 2015-09-02, 09:57 PM
        
        Clever Corvids: using tools dhw 2015-09-03, 08:25 PM
        
        Clever Corvids: using tools David Turell 2015-09-03, 09:32 PM
        
        Clever Corvids: using tools David Turell 2015-09-04, 12:51 PM
        
        Clever Corvids: using tools dhw 2015-09-04, 06:03 PM
        
        Clever Corvids: using tools David Turell 2015-09-04, 08:58 PM
        
        Clever Corvids: using tools dhw 2015-09-05, 09:49 AM
        
        Clever Corvids: using tools David Turell 2015-09-05, 06:04 PM
        
        Clever Corvids: using tools dhw 2015-09-06, 02:31 PM
        
        Clever Corvids: using tools David Turell 2015-09-06, 05:24 PM
        
        Clever Corvids: using tools dhw 2015-09-07, 06:51 PM
        
        Clever Corvids: using tools David Turell 2015-09-07, 10:01 PM
        
        Clever Corvids: using tools dhw 2015-09-08, 04:47 PM
        
        Clever Corvids: using tools David Turell 2015-09-08, 05:02 PM
        
        Clever Corvids: using tools dhw 2015-09-09, 12:17 PM
        
        Clever Corvids: using tools David Turell 2015-09-09, 01:29 PM
        
        Clever Corvids: using tools dhw 2015-09-10, 10:51 AM
        
        Clever Corvids: using tools David Turell 2015-09-10, 01:17 PM
        
        Clever Corvids: using tools dhw 2015-09-11, 03:22 PM
        
        Clever Corvids: using tools David Turell 2015-09-14, 12:19 AM
        
        Clever Corvids: using tools dhw 2015-09-14, 06:38 PM
        
        Clever Corvids: using tools David Turell 2015-09-14, 11:48 PM
        
        Clever Corvids: unique beaks for tool use David Turell 2016-03-15, 08:11 PM
        
        Clever Corvids: unique beaks for tool use dhw 2016-03-17, 01:14 PM
        
        Clever Corvids: unique beaks for tool use David Turell 2016-03-17, 02:17 PM
        
        Clever Corvids: unique beaks for tool use dhw 2016-03-18, 04:17 PM
        
        Clever Corvids: unique beaks for tool use David Turell 2016-03-18, 05:20 PM
        
        Clever Corvids: unique beaks for tool use dhw 2016-03-19, 12:54 PM
        
        Clever Corvids: unique beaks for tool use David Turell 2016-03-19, 02:08 PM
        
        Clever Corvids: unique beaks for tool use dhw 2016-03-20, 05:41 PM
        
        Clever Corvids: unique beaks for tool use David Turell 2016-03-20, 06:26 PM
        
        Clever Corvids: unique beaks for tool use dhw 2016-03-21, 10:44 AM
        
        Clever Corvids: unique beaks for tool use David Turell 2016-03-21, 02:43 PM
        
        Clever Corvids: unique beaks for tool use dhw 2016-03-22, 09:58 AM
        
        Clever Corvids: unique beaks for tool use David Turell 2016-03-22, 03:03 PM
        
        Clever Corvids: unique beaks for tool use dhw 2016-03-23, 01:59 PM
        
        Clever Corvids: unique beaks for tool use David Turell 2016-03-23, 02:32 PM
        
        Clever Corvids: unique beaks for tool use BBella 2016-03-20, 02:53 AM
        
        Clever Corvids: unique beaks for tool use David Turell 2016-03-20, 04:57 AM
        
        Clever Corvids: BBella's approach dhw 2016-03-21, 11:17 AM
        
        Clever Corvids: BBella's approach David Turell 2016-03-21, 03:30 PM
        
        Clever Corvids: BBella's approach dhw 2016-03-22, 10:25 AM
        
        Clever Corvids: BBella's approach David Turell 2016-03-22, 03:15 PM
        
        Clever Corvids: BBella's approach dhw 2016-03-23, 02:05 PM
        
        Clever Corvids: BBella's approach David Turell 2016-03-23, 02:38 PM
        
        Clever Corvids: BBella's approach BBella 2016-03-23, 07:56 PM
        
        Clever Corvids: BBella's approach David Turell 2016-03-23, 08:23 PM
        
        Clever Corvids: BBella's approach dhw 2016-03-24, 01:26 PM
        
        Clever Corvids: BBella's approach David Turell 2016-03-24, 02:59 PM
        
        Clever Corvids: As clever as apes David Turell 2016-04-26, 06:41 PM
        
        Clever Corvids: due to neuron number and design David Turell 2016-06-14, 02:52 PM
        
        Clever Corvids: Hawaiin species found David Turell 2016-09-14, 06:56 PM
        
        Clever Corvids: parrots using tools David Turell 2015-12-16, 01:26 AM
        
        Clever Corvids: hooked tools & saving them David Turell 2015-12-23, 03:55 PM
        
        Clever Corvids: observe their dead David Turell 2016-01-09, 05:26 AM
        
        Clever Corvids: a degree of abstract thought David Turell 2016-02-03, 01:10 AM
        
        Clever Corvids: a degree of abstract thought David Turell 2016-03-04, 09:50 PM
        
        Clever Corvids: a degree of abstract thought dhw 2016-03-05, 01:28 PM
        
        Clever Corvids: a degree of abstract thought David Turell 2016-03-05, 02:48 PM
        
        Clever Corvids: a degree of abstract thought dhw 2016-03-06, 05:28 PM
        
        Clever Corvids: a degree of abstract thought David Turell 2016-03-07, 02:56 PM
        
        Clever Corvids: a degree of abstract thought dhw 2016-03-08, 06:10 PM
        
        Clever Corvids: a degree of abstract thought David Turell 2016-09-22, 07:26 PM
        
        Clever Corvids: and others in a review David Turell 2016-12-04, 12:49 AM
        
        Clever Corvids: and others. Chickens! David Turell 2017-01-04, 01:03 AM
        
        Clever Corvids: ravens can remember and plan David Turell 2017-07-13, 10:20 PM
        
        Clever Corvids: handle probability better than we David Turell 2018-05-30, 06:03 PM
        
        Clever Corvids: making new tool from memory David Turell 2018-06-28, 06:31 PM
        
        Clever Corvids: making new tool from memory David Turell 2018-07-02, 04:47 PM
        
        Clever Corvids: inventing a tool to reach food David Turell 2018-10-24, 07:25 PM
        
        Clever Corvids: no! parrots inventing a tool to reach food David Turell 2018-11-08, 11:50 PM
        
        Clever Corvids: more on how clever David Turell 2018-11-23, 11:55 PM
        
        Clever Corvids: more on how clever dhw 2018-11-24, 12:08 PM
        
        Clever Corvids: more on how clever David Turell 2018-11-24, 03:28 PM
        
        Clever Corvids: more on how clever dhw 2018-11-25, 09:00 AM
        
        Clever Corvids: more on how clever David Turell 2018-11-25, 07:47 PM
        
        Clever Corvids: more on how clever dhw 2018-11-26, 11:50 AM
        
        Clever Corvids: more on how clever David Turell 2018-11-26, 07:13 PM
        
        Clever Corvids: more on how clever dhw 2018-11-27, 03:42 PM
        
        Clever Corvids: more on how clever David Turell 2018-11-27, 05:22 PM
        
        Clever Corvids: estimating weight after training David Turell 2019-01-09, 09:48 PM
        
        Clever Corvids: controlling song calls David Turell 2019-08-27, 06:17 PM
        
        Clever Corvids: the cortical equivalent in many birds David Turell 2020-09-24, 09:28 PM
        
        Clever Corvids: the cortical equivalent in many birds dhw 2020-09-25, 11:32 AM
        
        Clever Corvids: the cortical equivalent in many birds David Turell 2020-09-25, 11:08 PM
        
        Clever Corvids: the cortical equivalent in many birds dhw 2020-09-26, 11:30 AM
        
        Clever Corvids: the cortical equivalent in many birds David Turell 2020-09-26, 07:36 PM
        
        Clever Corvids: the cortical equivalent in many birds dhw 2020-09-27, 11:44 AM
        
        Clever Corvids: the cortical equivalent in many birds David Turell 2020-09-27, 04:00 PM
        
        Clever Corvids: the cortical equivalent in many birds dhw 2020-09-28, 01:14 PM
        
        Clever Corvids: the cortical equivalent in many birds David Turell 2020-09-28, 04:56 PM
        
        Clever Corvids: the cortical equivalent in many birds dhw 2020-09-29, 01:18 PM
        
        Clever Corvids: the cortical equivalent in many birds David Turell 2020-09-29, 04:19 PM
        
        Clever Corvids: the cortical equivalent in many birds dhw 2020-09-30, 09:59 AM
        
        Clever Corvids: the cortical equivalent in many birds David Turell 2020-09-30, 02:48 PM
        
        Clever Corvids: the cortical equivalent in many birds dhw 2020-10-01, 10:30 AM
        
        Clever Corvids: the cortical equivalent in many birds David Turell 2020-10-01, 03:48 PM
        
        Clever Corvids: the cortical equivalent in many birds dhw 2020-10-02, 11:26 AM
        
        Clever Corvids: the cortical equivalent in many birds David Turell 2020-10-02, 06:40 PM
        
        Clever Corvids: now New Zealand robins show memory David Turell 2020-02-19, 06:22 PM
        
        Clever Corvids: as smart as apes David Turell 2020-12-10, 10:31 PM
        
        Clever Corvids: other birds braininess David Turell 2022-03-31, 04:50 PM
        
        Clever Corvids: understanding probability David Turell 2023-07-07, 04:46 PM
        
        Clever Corvids: more song calls more problem solving David Turell 2023-09-15, 02:17 PM
        
        Clever Corvids: crows count outloud David Turell 2024-05-24, 03:05 PM
        
        Clever Corvids: latest viewpoints: David Turell 2025-05-25, 11:22 PM