棘 - thorn, splinter, spine

scapular spine; spine of the scapula; spina scapulae

Ryukyu spiny rat (Tokudaia osimensis)

echinoderm

briars; thicket; the bush

stickleback (Gasterosteidae spp.)

barbed wire

bone spur; osteophyte

Ryukyu spiny rat (Tokudaia osimensis)

acanthodians (extinct jawed fishes)

sand sifting starfish (Astropecten polyacanthus); comb star

poisonous spine; venomous spine

infraspinatus muscle