# CLAM NFTs
**Clams can be traded. Clam NFTs can be used for farming in two ways: they can be harvested for $SHELL and can be staked in the Clam Island Farm to generate Pearl NFTs.**
Each minted CLAM NFT will have a set of unique attributes stored on the blockchain. All Clams are fully rendered in 3D and interactive. No gifs or videos here!
Every Clam that you buy has randomized traits. There are over 6 billion different possible combinations, including a variety of shapes, colors and tongues, so your Clam is almost certainly going to be unique!
Clam NFTs can be deposited to farm Pearl NFTs. Every Clam has a lifespan between 5 and 15, this means it can produce that certain number of Pearls before it dies. With each Pearl that a Clam produces, it will also be possible to harvest it for some extra $SHELL. But also with each Pearl that a Clam produces, the chance that the next one is rarer, is higher. So the last Pearl that a Clam produces, which will also kill the Clam, has the highest chance of being a more rare one.
Once a Clam dies (after all Pearls are produced) - it still exists as an NFT and can still be traded, but it can no longer be harvested for $SHELL. So potentially a user can use a strategy where they produce pearls until the remaining lifespan is 1 (meaning the next pearl produced will kill it), and then harvest the Clam for maximum $SHELL. And with the more rare Clams the user can produce all the Pearls and not harvest it for $SHELL, the idea being that the last pearl has the highest chance of being rare and the Clam’s own rarity will give it resale value even without the ability to redeem for $SHELL. There are various ways to play this ecosystem, that's the beauty of it.
**Here’s an example of a few Clams:**
That said, some Clam traits are rarer than others, so to help you identify just how rare your Clam is, we have included a rarity tier system which ranges from Common to Legendary.
{% hint style="success" %}
Clams with certain traits are more likely to produce Pearls with certain traits. By design, it is not always the case that rarer Clams produce rarer Pearls - for example, white is the most common color for Clams, but it is also the trait that increases the chances of producing a white Pearl, which is in fact the rarest color for Pearls. So, to really play the ecosystem well, a user will need to make use of all types of Clams including common ones
{% endhint %}
## **TRAITS**
| TRAIT | VALUE RANGE | DROP RATE |
| -------------------------------------- | ------------ | ------------------- |
| **Shell Shape** | Heart | 8% |
| | Spade | 10% |
| | Big Mouth | 8% |
| | Three-Lipped | 10% |
| | Fan | 15% |
| | Common | 25% |
| | Octo | 10% |
| | Sharp-Tooth | 3% |
| | Barnacle | 6% |
| | Hamburger | 5% |
| | Maxima | 0% (reward only) |
| **Tongue Shape** | Common | 50% |
| | Forked | 25% |
| | Heart | 15% |
| | Star | 8% |
| | Spiral | 2% |
| **Shell, Inner, Lip and Tongue Color** | | |
| | Red | 7% |
| | Blue | 4% |
| | Green | 12% |
| | Yellow | 15% |
| | White | 20% |
| | Black | 1% |
| | Purple | 5% |
| | Pink | 9% |
| | Orange | 12% |
| | Brown | 15% |
| **Pattern** | None | 30% |
| | Hearts | 6% |
| | Flowers | 7% |
| | Clovers | 10% |
| | Diamonds | 5% |
| | Stars | 3% |
| | Spades | 8% |
| | Polkadots | 6% |
| | Saint | 10% |
| | Exes | 8% |
| | Arrows | 2% |
| | Moroccan | 1% |
| **Size** | 1-100 | Random distribution |
| **Lifespan** | 5-15 | Random distribution |
| **Glow** | True | 0.1% |
| | False | 99.9% |
**Now which one of you wants to try and figure out the exact probability of you getting the Clam that you have?**
And in case you forget, our built-in on-chain rarity tiers, which are calculated based on the drop rates in the above table, are as follows:
**RARITY TIERS**
| **Tier** | **Drop Rate** |
| ---------- | ------------- |
| Common | 71% |
| Uncommon | 18% |
| Rare | 8% |
| Ultra Rare | 2.5% |
| Epic | 0.45% |
| Legendary | 0.05% |
---
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