Answer:
There are 188 legs in all
Explanation:
Let's solve this problem step by step:
1. First of all, there are 4 unicorns enjoying themselves playing in the forest, they are: Stardust, Umo, Windthorn and Highflyer are enjoying themselves playing in the forest. Each unicorn has 4 legs, so:
![4 \ unicorns * 4 \ legs=\boxed{16 \ legs}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/rxwesc324d0nwpkaxubngm93e000x6qrai.png)
2. The unicorns notice 8 spiders in the tree, so each spider has 8 legs. Accordingly:
![8 \ spider * 8 \ legs=\boxed{64 \ legs}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/dlosj4gjkh9k831jplyoooe5t3znd38h3p.png)
3. There are 5 cockroaches, so each cockroach has 6 legs. Accordingly:
![5 \ cockroaches * 6 \ legs=\boxed{30 \ legs}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/fa87utlq4ry53l464ra1858kesme9vwqxb.png)
4. There are 7 bees, so each bee has 6 legs. Accordingly:
![7 \ bees * 6 \ legs=\boxed{42 \ legs}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/i9r9bgt9mfsxub47ew2xlmk2nfky507g6l.png)
5. There are 3 deer, so each deer has 4 legs. Accordingly:
![3 \ deers * 4 \ legs=\boxed{12 \ legs}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/pjhwdiftaokua8co5xubmddotaame0px6b.png)
6. There are 4 cows, so each cow has 4 legs. Accordingly:
![4 \ cows * 4 \ legs=\boxed{16 \ legs}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ofjkb49bb2b8lxmcsueb6m4ncp2axeevek.png)
7. They notice a pair of antlers behind a bush, so this means there are 2 more deers, and each having 4 legs. Accordingly:
![2\ deers * 4 \ legs=\boxed{8 \ legs}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/pxoungewwgprm3zifv1ly5i2r6phu0tx3m.png)
7. They notice a pair of antlers behind a bush, so this means there are 2 deers, and each having 4 legs. Accordingly:
![2\ deers * 4 \ legs=\boxed{8 \ legs}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/pxoungewwgprm3zifv1ly5i2r6phu0tx3m.png)
Adding all the amounts of legs we have:
![Total=16+64+30+42+16+12+8=\boxed{188 \ legs}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ghfs48x8g6ldvjseq1pzzqfcgp2q9oxs93.png)