Brain Out 2 Level 60

Overview

Level 60 says "Sort mammals from smallest to largest on a straight line." Four animals are shown: a large white dove, a gray seal, a small blue dolphin, and a tiger. A blank straight line sits below, and a boy thinks beside it. The trap is the word "mammals" — not all four animals are mammals. The white dove is a bird, not a mammal, so it must be left off the line.

• Difficulty: Hard
• Estimated moves: 3

Step-by-Step Solution

1. Read the task carefully. You must sort only MAMMALS, from smallest to largest, onto the line.

1. Ask which animals are actually mammals.

• The white dove: it has a beak and feathers — it is a BIRD, not a mammal. Exclude it; it does not go on the line.
• The seal: a mammal.
• The dolphin: a mammal (cetacean).
• The tiger: a mammal (big cat).

1. Set the dove aside. Do not place the bird on the line just because it is the biggest picture — it is not a mammal.

1. Order the three true mammals by real-world size, smallest to largest. Based on typical body size: the seal is smallest, then the tiger, and the dolphin is the largest of the three.

1. Place them on the straight line in that order: seal → tiger → dolphin.

1. Confirm the clear. The puzzle accepts the ordering and the green check marks the solution.

Strategy & Reasoning

The whole level hinges on the single word "mammals." Most players immediately try to sort all four animals by their drawn size, but the dove is drawn huge on purpose to distract you. A dove is a bird, not a mammal, so it is not part of the task at all. The reward logic is: know your animal classes.

Once you drop the bird, three true mammals remain: seal, dolphin, tiger. Now you sort them by real-life size (not the on-screen drawing size, because that was also deliberately misleading — the dolphin is drawn tiny but is actually large). From smallest to largest this gives seal first, then tiger, then dolphin.

The boy scratching his head hints that it is a knowledge trick rather than a drag-and-drop reflex. Do not put the dove on the line no matter how big it looks. The defining insight — excluding the non-mammal bird — is what solves it.

Note: solution steps are based on visible frames only.

Tips & Common Mistakes

• Mistake: putting the dove on the line. It is a bird, not a mammal. Leave it out.
• Mistake: sorting by the size drawn on screen. The drawings are scaled to mislead; use real animal sizes.
• Mistake: forgetting the dolphin is a mammal. Dolphins and seals are mammals too. Keep the dove off the line and arrange the true mammals (seal, then tiger, then dolphin) from smallest to largest real size on the line to clear the level.

Key Frames