Questions with the keyword 'blood'

• Why does the blood become red by touching the air? Is that something to do with metal? by Yui to Kevin Comments: (No comments so far )
• Why is the blood originaly bleu in our body? Is that true for all the animals? by Yui to Anthea, Chloe, Kevin, Michel, Sean Comments: (so far, 2s comments )
• is blue blood real by 358evoa29 to Anthea, Chloe, Kevin, Michel, Sean Comments: (No comments so far )