In biology, dactyly is the arrangement of digits (fingers and toes) on the hands, feet, or sometimes wings of a tetrapod animal. It comes from the Greek word δακτυλος = "finger".
Sometimes the ending "-dactylia" is used. The derived adjectives end with "-dactyl" or "-dactylous".
Pentadactyly (from Greek πέντε (pénte) = "five" and δάκτυλος (dáktulos) = "finger") is the condition of having five digits on each limb. It is believed that all living tetrapods are descended from an ancestor with a pentadactyl limb, although many species have now lost or transformed some or all of their digits by the process of evolution. However, this viewpoint was challenged by Stephen Jay Gould in his 1991 essay "Eight (Or Fewer) Little Piggies". Despite the individual variations listed below, the relationship is to the original five-digit 'model'.
In reptiles, the limbs are pentadactylous.
Tetradactyly (from Greek tetra-="four" plus δακτυλος = "finger") is the condition of having four digits on a limb, as in many amphibians, birds, and theropod dinosaurs. Some mammals also exhibit tetradactyly (for example pigs and the hind limbs of dogs and cats). Cartoon characters are commonly drawn with four digits on each hand/foot as it's clearer to see than five.
No-one knows how you feel
No-one there you'd like to see
The day was dark and full of pain
You write help with your own blood
'Cause hope is all you've got
You open up you eyes
But nothings changed
I don't want to cause you trouble
Don't wanna stay too long
I just came here to say to you
Turn around, I am here
If you want it's me you'll see
Doesn't count, far or near
I can hold you when you reach for me
Your life is meaningless
Your diary full of trash
It's so hard to get along with empty hands
You're looking for the rainbow
But it died not long ago
It tried to shine just for you
Until the end
I don't want to cause you trouble
Don't wanna stay too long
I just came here to say to you
I am by your side
Just for a little while
Turn around, I am here
If you want it's me you'll see
Doesn't count, far or near
I can hold you when you reach for me
If the world makes you confused
And your senses you seem to lose
If the storm doesn't want to diffuse
And you just don't know what to do
Look around, I am here
Doesn't count far or near
I am by your side
Just for a little while
Turn around
Turn around, I am here
Turn around
Doesn't count, far or near
Turn around
If you want it's me you'll see
Turn around
I can hold you when you reach for me
Turn around, I am here
Doesn't count, far or near
I am by your side
Just for a little while