look in the book of Job behemath is mentioned Job 40:15-24 below discribes it Thanks for the question friend God bless. man lived with dinosaurs there is proof of it with man's footsteps within a dinosaurs footsteps. google it. Job 41 Leviathan below.
Job 40:15-24New International Version (NIV)
15 “Look at Behemoth,
which I made along with you
and which feeds on grass like an ox.
16 What strength it has in its loins,
what power in the muscles of its belly!
17 Its tail sways like a cedar;
the sinews of its thighs are close-knit.
18 Its bones are tubes of bronze,
its limbs like rods of iron.
19 It ranks first among the works of God,
yet its Maker can approach it with his sword.
20 The hills bring it their produce,
and all the wild animals play nearby.
21 Under the lotus plants it lies,
hidden among the reeds in the marsh.
22 The lotuses conceal it in their shadow;
the poplars by the stream surround it.
23 A raging river does not alarm it;
it is secure, though the Jordan should surge against its mouth.
24 Can anyone capture it by the eyes,
or trap it and pierce its nose?
Job 41King James Version (KJV)
41 Canst thou draw out leviathan with an hook? or his tongue with a cord which thou lettest down?
2 Canst thou put an hook into his nose? or bore his jaw through with a thorn?
3 Will he make many supplications unto thee? will he speak soft words unto thee?
4 Will he make a covenant with thee? wilt thou take him for a servant for ever?
5 Wilt thou play with him as with a bird? or wilt thou bind him for thy maidens?
6 Shall the companions make a banquet of him? shall they part him among the merchants?
7 Canst thou fill his skin with barbed irons? or his head with fish spears?
8 Lay thine hand upon him, remember the battle, do no more.
9 Behold, the hope of him is in vain: shall not one be cast down even at the sight of him?
10 None is so fierce that dare stir him up: who then is able to stand before me?
11 Who hath prevented me, that I should repay him? whatsoever is under the whole heaven is mine.
12 I will not conceal his parts, nor his power, nor his comely proportion.
13 Who can discover the face of his garment? or who can come to him with his double bridle?
14 Who can open the doors of his face? his teeth are terrible round about.
15 His scales are his pride, shut up together as with a close seal.
16 One is so near to another, that no air can come between them.
17 They are joined one to another, they stick together, that they cannot be sundered.
18 By his neesings a light doth shine, and his eyes are like the eyelids of the morning.
19 Out of his mouth go burning lamps, and sparks of fire leap out.
20 Out of his nostrils goeth smoke, as out of a seething pot or caldron.
21 His breath kindleth coals, and a flame goeth out of his mouth.
22 In his neck remaineth strength, and sorrow is turned into joy before him.
23 The flakes of his flesh are joined together: they are firm in themselves; they cannot be moved.
24 His heart is as firm as a stone; yea, as hard as a piece of the nether millstone.
25 When he raiseth up himself, the mighty are afraid: by reason of breakings they purify themselves.
26 The sword of him that layeth at him cannot hold: the spear, the dart, nor the habergeon.
27 He esteemeth iron as straw, and brass as rotten wood.
28 The arrow cannot make him flee: slingstones are turned with him into stubble.
29 Darts are counted as stubble: he laugheth at the shaking of a spear.
30 Sharp stones are under him: he spreadeth sharp pointed things upon the mire.
31 He maketh the deep to boil like a pot: he maketh the sea like a pot of ointment.
32 He maketh a path to shine after him; one would think the deep to be hoary.
33 Upon earth there is not his like, who is made without fear.
34 He beholdeth all high things: he is a king over all the children of pride.