Is it LAWFUL to kill animals?

You have much more homework to do. The Hebrew word translated 'serpent' is not simple, and the context tells us this was not a member of the animal kingdom.

Jesus killed and ate fish. Fish are animals.

Don't worry I can read the Bible, it's not a particularly difficult book, and that part is not particularly far into it.

I wasn't suggesting that you couldn't. There's more to learning than reading though.

God told the truth, even about the father of lies, cursed above all cattle is he, praise the God that will kill the animal, that pathetic old serpent.

God told the truth in Hebrew and Greek. That truth doesn't necessarily come through to English with the same clarity.

God made all the tongues, and they're all just fine. The story remains the same because it is the truth, praise the God, praise Jesus Christ who bears that ultimate Sword of Truth that will cut the kingdom of lies, all that believed and obeyed the serpent, they will be cut to pieces when Jesus comes back, praise Jesus!

So, tell us, if he forbade them from touching dead bodies, how could they skin them, cut them, cook them and eat them, without touching them?
They are not food. The herbs and fruits are food since the beginning, and God can't change. Neither the Law changes. So, why would you shed innocent blood, when you have herbs and fruits for food? -It isn't necessary to shed innocent blood, you do it because you lust after flesh, and are not contented with the food Father gave you. Let it be known, whosoever tastes flesh, eats the body of death.

Now, I will show you how killing animals is a transgression, specifically murder:
1. Humans and animals are brothers of the same Father, they were made by the same Hand, with the same dust, and share the same "breath of Life":

Ecclesiastes 3:18 I said in mine heart concerning the estate of the sons of men, that God might manifest them, and that they might see that they themselves are beasts.
19 For that which befalleth the sons of men befalleth beasts; even one thing befalleth them: as the one dieth, so dieth the other; yea, they have all one breath; so that a man hath no preeminence above a beast: for all is vanity.
20 All go unto one place; all are of the dust, and all turn to dust again.

-Because of this, killing an animal is equated as killing a man, since the same breath that is found in man, is also found in animals:

Isaiah 66:3 He that killeth an ox is as if he slew a man; he that sacrificeth a lamb, as if he cut off a dog's neck; [...]

-Making it a transgression against the Breath of the Father. Murder, because humans and animals are brothers of the same Father.

Matthew 25:37 Then shall the righteous answer him, saying, Lord, when saw we thee an hungred, and fed thee? or thirsty, and gave thee drink?
40 And the King shall answer and say unto them, Verily I say unto you, Inasmuch as ye have done it unto one of the least of these my brethren, ye have done it unto me.

-You see they ask Him: when have we saw you? No man can see God, so He was talking about all creatures, even the least of these, because God is present in all Life forms, so doing it to any creature is doing it to Him.
You have to decide if you believe Abel was righteous, or if you believe he shed innocent blood, you can't have both.
Is not the KJV 1611 Scripture, the Bible? Or is it only part Scripture, part "not Scripture"? Are you partially rejecting the KJV 1611, and the Latin Vulgate, and the Septuagint? Anyways, do you actually believe the Law changes? Can murder be "legalized"?
That is not what it is written, He made coats of skins, you are assuming He kill the animals, it could have been wool of sheeps, or maybe the animals died of natural causes.
1. Jesus cannot sin.
2. Shedding innocent blood is sin.
3. Jesus cannot shed innocent blood.

The Lord hates hands that shed innocent blood:

Proverbs 6:16 These six things doth the Lord hate: yea, seven are an abomination unto him:
17 A proud look, a lying tongue, and hands that shed innocent blood,

PARB

Right, you don't have any witness within the Word to testify eating flesh is healthier. However I do have in Daniel a positive result with vegetables within ten days. So, let's stick to the Word and discuss the Bible. There is no need for the witness of men, when we have the clear Witness of the Word.

When you get around to reading Scripture for yourself, you will find the answers; they are all there.

Asked and answered already.

We aren't discussing murder.

I am not obligated to come up with additional reasons to refute an already thoroughly-refuted premise.

God's Word says they are. Take it up with Him.

God didn't change; His instructions to humans did. Deal with it.

You have badly misinterpreted Scripture and forced your personal opinion on it. Your position is wrong.

You are confused. It was added, and some reject the addition because the books were not inspired. Jerome clearly identified certain books of the older Old Latin OT version as apocryphal – or non-canonical He mentions the book of Baruch in his prologue to the Jeremias, stating that "it is neither read nor held among the Hebrews." Some of the authors of the books of the Apocrypha themselves state they are written during a time when there were no prophets. There is a lot in the Bible not declared inspired when you add in study notes and introductions and maps etc. Including the addition of chapter headings...

The Belgic Confession, written in 1561, was approved by
Synod 2011 of the Christian Reformed Church. It states (in part):

We include in the Holy Scripture the two volumes of the Old and New Testaments.
They are canonical books with which there can be no quarrel at all.

In the church of God the list is as follows:
In the Old Testament,

the five books of Moses— Genesis, Exodus, Leviticus, Numbers, Deuteronomy;

the books of Joshua, Judges, and Ruth;
the two books of Samuel, and two of Kings;
the two books of Chronicles, called Paralipomenon;
the first book of Ezra; Nehemiah, Esther, Job;
the Psalms of David;
the three books of Solomon—

Proverbs, Ecclesiastes, and the Song;

the four major prophets—

Isaiah, Jeremiah*, Ezekiel, Daniel;

and then the other twelve minor prophets—

Hosea, Joel, Amos, Obadiah, Jonah, Micah, Nahum, Habakkuk, Zephaniah, Haggai, Zechariah, Malachi.

In the New Testament,

the four gospels—

Matthew, Mark, Luke, and John;

the Acts of the Apostles;
the fourteen letters of Paul—

to the Romans;
the two letters to the Corinthians;
to the Galatians, Ephesians, Philippians, and Colossians;
the two letters to the Thessalonians;
the two letters to Timothy;
to Titus, Philemon, and to the Hebrews;

the seven letters of the other apostles—

one of James;
two of Peter;
three of John;
one of Jude;

and the Revelation of the apostle John.

We receive all these books and these only as holy and canonical,
for the regulating, founding, and establishing of our faith.

We distinguish between these holy books and the apocryphal ones,

which are the third and fourth books of Esdras;
the books of Tobit, Judith, Wisdom, Jesus Sirach, Baruch;
what was added to the Story of Esther;
the Song of the Three Children in the Furnace;
the Story of Susannah;
the Story of Bel and the Dragon;
the Prayer of Manasseh;
and the two books of Maccabees.

The church may certainly read these books and learn from them as far as they agree with the canonical books. But they do not have such power and virtue that one could confirm from their testimony any point of faith or of the Christian religion. Much less can they detract from the authority of the other holy books. source

Can the Law change? Can murder (for example) be legalized ?
That is not how it works, you saying I'm wrong proves nothing, it is just one witness.
Ok, maybe I'm wrong. Because you only have responded to the Baruch tangent, it must be my flaw for sure, since you didn't respond to my actual arguments, I guess I wasn't wrong on that. And just so you know, you will never convince me Sirach is not Scripture, nor Ezra, nor Enoch, nor the Wisdom of Solomon. Sirach because it saved me, Ezra because of understanding, and Enoch and Solomon because of Jesus.

Anyways I would rather we discuss the subject in question, have you realized already that the Lord hates hands that shed innocent blood? That He won't delight in the blood? -Because these topics are far more important.

Genesis 49:27 Benjamin shall ravin as a wolf: in the morning he shall devour the prey, and at night he shall divide the spoil.

Matthew 7:15 Beware of false prophets, which come to you in sheep's clothing, but inwardly they are ravening wolves.

Romans 1:11 I say then, Hath God cast away his people? God forbid. For I also am an Israelite, of the seed of Abraham, of the tribe of Benjamin.

John 10:27 My sheep hear my voice, and I know them, and they follow me:
John 10:3 To him the porter openeth; and the sheep hear his voice: and he calleth his own sheep by name, and leadeth them out.

4 And when he putteth forth his own sheep, he goeth before them, and the sheep follow him: for they know his voice.
5 And a stranger will they not follow, but will flee from him: for they know not the voice of strangers.

John 10:10 The thief cometh not, but for to steal, and to kill, and to destroy: I am come that they might have life, and that they might have it more abundantly.
11 I am the good shepherd: the good shepherd giveth his life for the sheep.
12 But he that is an hireling, and not the shepherd, whose own the sheep are not, seeth the wolf coming, and leaveth the sheep, and fleeth: and the wolf catcheth them, and scattereth the sheep.

Asked and answered.

You're still wrong.

You are free to believe what you like. However, you will not get agreement on these matters here, and you will be corrected and even rebuked. That's what you get when you choose to be wrong... especially on such an important matter.

I am well aware that the Lord hates the shedding of innocent blood. However, we are talking about killing animals, which is a distinct subject.

At some point this becomes futile. I’ve decided to take the following advice…

4 Answer not a fool according to his folly, lest thou also be like unto him.