Yes it does, but it takes study. Look to post 97 for some of it. Many commandments God gave man after the Flood, was addressed because of what the Nephilim were doing before the Flood. As an example, Noah was commanded to kill an animal before eating it in Gen 9:4. The Nephilim were cannibals. They had 6 fingers and 6 toes and 2 rows of teeth as well as being very tall. They were able to catch running animals and eat them as they were running. This is also where God said if we shed blood, by man will his blood be shed. Murder was rampant before the Flood.
Some study that you might find interesting is study the Rephaim, Emim, sons of Anack, and other races of Giants mention in Scripture. Og was the king of the Giants of Bashan. Goliath had 4 brothers and they were sons of Anack. Amos 2:9 speaks of the Amorites as giants. As the Hebrews were held captive in Egypt for 400 years, the Canaanites had those years to raise up giants to keep the Hebrews from reaching the promised land. The Devil knew the prophesy God gave Abraham when he was told they would be held against their will 400 years in a foreign land.
The 12 spies came back from exploring Canaan and reported that they were grasshoppers in their eyes. 2 men picked one cluster of grapes and had to carry it back with a stick between them. There were certainly more giants than Goliath in the Bible. They brought much evil to the earth as demonic blood changed the DNA of God's creatures. We were created in the image of God and the demons want to corrupt the seed of the woman,...Jesus. They killed all the babies when Moses was born to stop God's seed. They killed all the babies when Jesus was born to stop God's seed. When the Flood came, Scripture says ALL flesh was corrupted except Noah's. He was perfect in his generations. His wife however carried the corruption over to the new world.
Since Genesis 3, it's been about the "seed war" God declared. The seed of the woman would kill the seed of the Serpent.
These giants did evil things and tattoo's came from this. The Raphaim were called the "walking dead" and people worshiped them as gods. They dealt in black magic and taught it to their women.
You can also read the book of Jasher and the Book of Enoch for more information. These books were read by the Apostles of Jesus in His day, but were removed later. The Apocrypha was also part of the 1611 King James until about the 1880's. The Book of Enoch was mentioned by Jude and Jasher was mentioned in a couple of books in the OT. If they read it, why not you? It will explain a lot. Also get a copy of the Septuagint. Josephus also adds a lot to what the ancient Rabbi's taught back in the day.
Some studies....
Antiquities of the Jews book 5 chpt 2 vs 3.
2 Sam 21:20
Jasher 4:18
Jasher 2:19-20
The whole book of Enoch.
That limbs getting skinny...careful