Always leave a chink in your skin

What I like about

Crabs is that

they walk not all–ways but sideways
use all their legs  
take their time  
blow bubbles from their eyes  
dig their way out of fearsome open spaces into rocks or sand    
breathe underwater  
and on land  
co-ordinate egg laying with the moon  
grow a new shell when the old one gets too tight 
die when their carapaces crack.

Humans is that

they walk, run, skip, hop, crawl - 
      any way, including backwards,  
 they take my time  
 blow sea-water droplets from their eyes  
 love places with a view  
 breathe in only air and its scents and movements  
 repair their bones that crack
 re-grow their skin continually  
 live only if their carapaces crack.