Ouch! Thorns, Spines & Prickles

Challenge #12 in the Life in the Natural World series. Hosted by RuthC.
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Many plants grow sharp prickles, spines or thorns, usually to protect themselves from predators, such as insects, birds, or animals. Show us the interesting or bizarre forms of these sharp appendages in your entries, which should be in their natural environment, not under studio lights. Macro shots are welcome. Insects or other small creatures may be present, but must not dominate the picture. Check Wikipedia for more information about this thorny subject. SIZE DOES MATTER: See below!
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93 entries
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2104 votes
Thorns in the sunshine
cactus nest
Hunting for Pineapples
Camplong
motherInLawSeat
Natural fortress
Getting to the Point
Dare to touch me
Cholla Cactus
golden monster
Florida cactus
Spines like Needles
Architecture of spikes
Pricks all around
Prickly Pear Cactus
Grasp firmly with bare hands!
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Sample entries
These entries were provided by the challenge host(s) as samples and cannot be voted on. Upload sample image.
Prickles All Over
Thorns in Winter
Aloe With Attitude
1,600px. MAXIMUM
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