Honey Block

Honey blocks are sticky blocks craftable from honey bottles.

Obtaining
Honey blocks can be broken instantly, regardless of held items.

Usage
Mobs avoid walking on honey blocks.

Unlike the slime block, the honey block does not carry a redstone signal.

Pistons
When pushed by a piston, entities on its top surface and adjacent blocks move with it. Mobs are not launched high in the air if a piston pushes them up, unlike the slime block's behavior.

Slowing down entities
Honey blocks slow down entities walking on top of them and prevent them from jumping. Players, who can ordinarily jump about $1 1/4$ blocks high, can only jump about $3/16$ blocks high on honey this is a 85% reduction. They can more easily step up onto other blocks than jump up onto them.

Sliding


Entities attaching to the sides of a honey block slide down at a slow speed and do not take fall damage, similar to going down a ladder but with a gradually decreasing horizontal momentum. This allows players to jump 2 blocks further by holding on to the walls.

Falling
As with hay bales, falling onto a honey block reduces the fall damage by 80%, i.e. a player or mob falls from a height and should take 10 hearts of damage but because they land on a honey block they actually take 2 hearts.

Bees
When placed near beehives or bee nests, bees will occasionally fly close and attach to it for a few seconds, resembling an action of "eating honey". When doing this, a bee stops flattering wings and firmly attaches its face to a honey block.

This is regardless if there is any flower around.

Trivia

 * Honey blocks are not full blocks, despite looking 16*16*16, the collision is only 14*14*14 pixels. Small-enough entities (like arrows) are free to move through the gap between honey blocks as they are under 2 pixels wide.
 * Only when entities are partially “in” the honey block can they slide down against it.
 * In real life, bees eat honey when the temperature is low and flowers are difficult to find. Otherwise, pollen is their primary food.
 * They slow down players regardless of their movement (flying with elytra, swimming, etc).
 * Its bottom surface doesn’t affect entities.