Neuroanatomy of sea spiders implies an appendicular origin of the protocerebral segment
A study of brain architecture suggests that sea spiders aren’t like spiders – or any other living arthropods. Instead, they resemble certain ancient and extinct creatures. Read about the controversy here.
A sea spider’s contribution to T.H. Morgan’s (1866-1945) development
Before fruit flies, Nobel Laureate Thomas Hunt Morgan pondered sea spider embryology.