Genesis 30:1

¹ Now Rachel, because she had no children, was full of envy of her sister; and she said to Jacob, If you do not give me children I will not go on living.

Camel

In Genesis 24:10, 64, this signifies in general worldly knowledge in the natural man. (Arcana Coelestia 3046, 4104)

In Jeremiah 49:32, this signifies memory-knowledges used to confirm truths or falsities. (Apocalypse Explained 417[7])

A camel (Matthew 22:24) signifies scientific knowledge.