Why is it difficult to classify some species?

LIFE-----

How did it get here? By evolution or by creation? This question has differing viewpoints.

In considering questions related to the origin of life, popular opinion or emotion sway many. To avoid this and to reach accurate conclusions, we need to consider the evidence with an open mind.

There are profound differences between the theory of evolution and the Genesis creation account in The Bible.

What fit the facts? Read Genesis 1: 20-31 and Acts 17: 26

Humans create other humans, Dogs create other dogs, cats create cats, birds create birds, fish create fish and so forth.

So to answer your question which is " Why is it difficult to classify some species?

It is because humans find it difficult to accept the fact written in the Book of Revelation 4: 11 which reads

" You are worthy, Jehovah our God, to receive the glory and the honour and the power, because you created all things, and because of your will they came into existence and were created".

Our world is filled with so many marvelous things.

Big things, little things, ingenious things and simple things, and Darwin's theory is now on the verge of collapse, because fosil record confirms reproduction only " according to their kinds", as mentioned in the Bible.